Jetpack 4.2.1 breaks USB modem (driver issue?)

Hello,

I recently upgraded my TX2 from Jetpack 3.3 to 4.2.1. I have a USB 4G modem from u-blox plugged into the TX2. The exact model is an MPCI-L201. The modem worked fine on Jetson 3.3, but it appears that 4.2.1 is having some sort of driver-related issue with the modem.

On Jetpack 3.3, the modem modem would create a new tty on /dev/ttyACM0. This no longer occurs on Jetpack 4.2.1. The output from dmesg (included below) shows that the modem enumerates and disconnects repeatedly until giving up.

I took the modem off of the TX2, and plugged it into two other computers: one running Ubuntu 18.04 and another running Windows 10. The modem worked exactly as expected on both… it’s just the TX2 running 4.2.1 that is not working.

Any thoughts on what might be happening, or what may have changed between 3.3 and 4.2.1 that could be causing this?

dmesg output:

[    0.000000] Booting Linux on physical CPU 0x100
[    0.000000] Linux version 4.9.140-tegra (root@TX1-DEV2) (gcc version 6.4.1 20170707 (Linaro GCC 6.4-2017.08) ) #1 SMP PREEMPT Thu Aug 15 09:42:11 CDT 2019
[    0.000000] Boot CPU: AArch64 Processor [411fd073]
[    0.000000] OF: fdt:memory scan node memory@80000000, reg size 16416,
[    0.000000] OF: fdt: - 80000000 ,  70000000
[    0.000000] OF: fdt: - f0200000 ,  185600000
[    0.000000] OF: fdt: - 275e00000 ,  200000
[    0.000000] OF: fdt: - 276600000 ,  200000
[    0.000000] OF: fdt: - 277000000 ,  200000
[    0.000000] earlycon: uart8250 at MMIO32 0x0000000003100000 (options '')
[    0.000000] bootconsole [uart8250] enabled
[    0.000000] OF: fdt:Reserved memory: failed to reserve memory for node 'fb0_carveout': base 0x0000000000000000, size 0 MiB
[    0.000000] OF: fdt:Reserved memory: failed to reserve memory for node 'fb0_carveout': base 0x0000000000000000, size 0 MiB
[    0.000000] OF: fdt:Reserved memory: failed to reserve memory for node 'fb1_carveout': base 0x0000000000000000, size 0 MiB
[    0.000000] OF: fdt:Reserved memory: failed to reserve memory for node 'fb1_carveout': base 0x0000000000000000, size 0 MiB
[    0.000000] OF: fdt:Reserved memory: failed to reserve memory for node 'fb2_carveout': base 0x0000000000000000, size 0 MiB
[    0.000000] OF: fdt:Reserved memory: failed to reserve memory for node 'fb2_carveout': base 0x0000000000000000, size 0 MiB
[    0.000000] OF: reserved mem: initialized node ramoops_carveout, compatible id nvidia,ramoops
[    0.000000] cma: Reserved 64 MiB at 0x00000000fc000000
[    0.000000] On node 0 totalpages: 2055168
[    0.000000]   DMA zone: 8192 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 523776 pages, LIFO batch:31
[    0.000000]   Normal zone: 24008 pages used for memmap
[    0.000000]   Normal zone: 1531392 pages, LIFO batch:31
[    0.000000] psci: probing for conduit method from DT.
[    0.000000] psci: PSCIv1.0 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.1
[    0.000000] percpu: Embedded 25 pages/cpu @ffffffc1f7041000 s61592 r8192 d32616 u102400
[    0.000000] pcpu-alloc: s61592 r8192 d32616 u102400 alloc=25*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [0] 4 [0] 5 
[    0.000000] Speculative Store Bypass Disable mitigation not required
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 2022968
[    0.000000] Kernel command line: root=/dev/mmcblk0p1 rw rootwait rootfstype=ext4 console=tty0 OS=l4t fbcon=map:0 net.ifnames=0 video=tegrafb no_console_suspend=1 earlycon=uart8250,mmio32,0x3100000 nvdumper_reserved=0x2772e0000 gpt usbcore.old_scheme_first=1 tegraid=18.1.2.0.0 maxcpus=6 boot.slot_suffix= boot.ratchetvalues=0.2031647.1 bl_prof_dataptr=0x10000@0x275840000 sdhci_tegra.en_boot_part_access=1 quiet
[    0.000000] log_buf_len individual max cpu contribution: 32768 bytes
[    0.000000] log_buf_len total cpu_extra contributions: 163840 bytes
[    0.000000] log_buf_len min size: 32768 bytes
[    0.000000] log_buf_len: 262144 bytes
[    0.000000] early log buf free: 29524(90%)
[    0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
[    0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes)
[    0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes)
[    0.000000] Memory: 7970136K/8220672K available (15038K kernel code, 2912K rwdata, 6688K rodata, 8576K init, 611K bss, 185000K reserved, 65536K cma-reserved)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     modules : 0xffffff8000000000 - 0xffffff8008000000   (   128 MB)
[    0.000000]     vmalloc : 0xffffff8008000000 - 0xffffffbebfff0000   (   250 GB)
[    0.000000]       .text : 0xffffff8008080000 - 0xffffff8008f30000   ( 15040 KB)
[    0.000000]     .rodata : 0xffffff8008f30000 - 0xffffff80095c0000   (  6720 KB)
[    0.000000]       .init : 0xffffff80095c0000 - 0xffffff8009e20000   (  8576 KB)
[    0.000000]       .data : 0xffffff8009e20000 - 0xffffff800a0f8008   (  2913 KB)
[    0.000000]        .bss : 0xffffff800a0f8008 - 0xffffff800a190d3c   (   612 KB)
[    0.000000]     fixed   : 0xffffffbefe7fd000 - 0xffffffbefec00000   (  4108 KB)
[    0.000000]     PCI I/O : 0xffffffbefee00000 - 0xffffffbeffe00000   (    16 MB)
[    0.000000]     vmemmap : 0xffffffbf00000000 - 0xffffffc000000000   (     4 GB maximum)
[    0.000000]               0xffffffbf00000000 - 0xffffffbf07dc8000   (   125 MB actual)
[    0.000000]     memory  : 0xffffffc000000000 - 0xffffffc1f7200000   (  8050 MB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=6, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	Build-time adjustment of leaf fanout to 64.
[    0.000000] 	RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=6.
[    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=6
[    0.000000] NR_IRQS:64 nr_irqs:64 0
[    0.000000] GIC: Using split EOI/Deactivate mode
[    0.000000] arm_arch_timer: Architected cp15 timer(s) running at 31.25MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xe6a171046, max_idle_ns: 881590405314 ns
[    0.000003] sched_clock: 56 bits at 31MHz, resolution 32ns, wraps every 4398046511088ns
[    0.001021] Console: colour dummy device 80x25
[    0.001026] console [tty0] enabled
[    0.001029] bootconsole [uart8250] disabled
[    0.001035] kmemleak: Kernel memory leak detector disabled
[    0.001044] Calibrating delay loop (skipped), value calculated using timer frequency.. 62.50 BogoMIPS (lpj=125000)
[    0.001052] pid_max: default: 32768 minimum: 301
[    0.001363] Security Framework initialized
[    0.001520] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.001524] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.002118] ftrace: allocating 46905 entries in 184 pages
[    0.126829] sched-energy: Sched-energy-costs installed from DT
[    0.126839] ASID allocator initialised with 65536 entries
[    0.161184] tegra-id: chipid=21817.
[    0.161190] tegra-id: opt_subrevision=1.
[    0.161207] Tegra Revision: A02p SKU: 0xdc CPU Process: 0 SoC Process: 0
[    0.161214] DTS File Name: tegra186-tx2-cti-ASG002-mPCIe.dts
[    0.161219] DTB Build time: Aug 16 2019 15:05:22
[    0.209561] CPU1: Booted secondary processor [4e0f0030]
[    0.241197] CPU2: Booted secondary processor [4e0f0030]
[    0.272980] CPU3: Booted secondary processor [411fd073]
[    0.304974] CPU4: Booted secondary processor [411fd073]
[    0.336964] CPU5: Booted secondary processor [411fd073]
[    0.337022] Brought up 6 CPUs
[    0.337025] SMP: Total of 6 processors activated.
[    0.337030] CPU features: detected feature: 32-bit EL0 Support
[    0.337756] CPU: All CPU(s) started at EL2
[    0.337805] alternatives: patching kernel code
[    0.346939] devtmpfs: initialized
[    0.370355] Initilizing CustomIPI irq domain
[    0.370578] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.370588] futex hash table entries: 2048 (order: 5, 131072 bytes)
[    0.371484] pinctrl core: initialized pinctrl subsystem
[    0.371670] OS set in device tree is not L4T.
[    0.371823] regulator-dummy: no parameters
[    0.371970] Initializing plugin-manager
[    0.372023] Plugin module not found
[    0.372058] Plugin-manager status disabled
[    0.373256] NET: Registered protocol family 16
[    0.373930] pstore: using zlib compression
[    0.373943] console [pstore-1] enabled
[    0.373945] pstore: Registered ramoops as persistent store backend
[    0.373949] ramoops: attached 0x200000@0x275880000, ecc: 0/0
[    0.392576] cpuidle: using governor menu
[    0.393543] bpmp: waiting for handshake
[    0.393547] bpmp: handshake completed
[    0.393561] bpmp: synchronizing channels
[    0.393578] bpmp: channels synchronized
[    0.393581] bpmp: mail init ok
[    0.395173] arm-smmu 12000000.iommu: probing hardware configuration...
[    0.395178] arm-smmu 12000000.iommu: SMMUv2 with:
[    0.395182] arm-smmu 12000000.iommu: 	stage 1 translation
[    0.395186] arm-smmu 12000000.iommu: 	stage 2 translation
[    0.395189] arm-smmu 12000000.iommu: 	nested translation
[    0.395195] arm-smmu 12000000.iommu: 	stream matching with 128 register groups, mask 0x7f80
[    0.395200] arm-smmu 12000000.iommu: SMMU address space size (0x800000) differs from mapped region size (0x1000000)!
[    0.395204] arm-smmu 12000000.iommu: 	64 context banks (0 stage-2 only)
[    0.395208] arm-smmu 12000000.iommu: 	Stage-1: 39-bit VA -> 48-bit IPA
[    0.395211] arm-smmu 12000000.iommu: 	Stage-2: 39-bit IPA -> 48-bit PA
[    0.396904] vdso: 2 pages (1 code @ ffffff8008f37000, 1 data @ ffffff8009e24000)
[    0.396916] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.399589] atomic_pool_init():622: DMA: preallocated 1024 KiB pool for atomic allocations
[    0.400521] Registering BPMP clocks...
[    0.400611] tegra_bpmp_clk_init: clock init ok (638 clks)
[    0.402382] tegra_powergate_init: DONE
[    0.402390] DTS File Name: tegra186-tx2-cti-ASG002-mPCIe.dts
[    0.402395] DTB Build time: Aug 16 2019 15:05:22
[    0.403657] Tegra reboot handler registered.
[    0.404846] tegra-pmc c360000.pmc: scratch reg offset dts data not present
[    0.404909] tegra-pmc: get_secure_pmc_setting: done secure_pmc=0
[    0.404921] tegra-pmc: ### PMC reset source: TEGRA_POWER_ON_RESET
[    0.404924] tegra-pmc: ### PMC reset level: TEGRA_RESET_LEVEL_L0
[    0.404926] tegra-pmc: ### PMC reset status reg: 0x0
[    0.405109] padctrl padctrl.0: Pad control driver tegra-pmc-padctrl registered
[    0.405119] tegra-pmc c360000.pmc: IO padctrl driver initialized
[    0.405411] iommu: Adding device 3460000.sdhci to group 0
[    0.406020] iommu: Adding device 3400000.sdhci to group 1
[    0.407041] iommu: Adding device 3507000.ahci-sata to group 2
[    0.407053] arm-smmu: forcing sodev map for 3507000.ahci-sata
[    0.407448] iommu: Adding device 3160000.i2c to group 3
[    0.407837] iommu: Adding device c240000.i2c to group 4
[    0.408151] iommu: Adding device 3180000.i2c to group 5
[    0.408449] iommu: Adding device 3190000.i2c to group 6
[    0.408837] iommu: Adding device 31b0000.i2c to group 7
[    0.409175] iommu: Adding device 31c0000.i2c to group 8
[    0.409475] iommu: Adding device c250000.i2c to group 9
[    0.409771] iommu: Adding device 31e0000.i2c to group 10
[    0.411224] iommu: Adding device 3210000.spi to group 11
[    0.411515] iommu: Adding device c260000.spi to group 12
[    0.411805] iommu: Adding device 3240000.spi to group 13
[    0.412455] iommu: Adding device 3100000.serial to group 14
[    0.412751] iommu: Adding device 3110000.serial to group 15
[    0.413062] iommu: Adding device c280000.serial to group 16
[    0.413353] iommu: Adding device 3130000.serial to group 17
[    0.414512] iommu: Adding device 2490000.ether_qos to group 18
[    0.414523] arm-smmu: forcing sodev map for 2490000.ether_qos
[    0.415170] iommu: Adding device b000000.rtcpu to group 19
[    0.416938] iommu: Adding device 13e10000.host1x to group 20
[    0.417241] iommu: Adding device 13e10000.host1x:ctx0 to group 21
[    0.417521] iommu: Adding device 13e10000.host1x:ctx1 to group 22
[    0.417809] iommu: Adding device 13e10000.host1x:ctx2 to group 23
[    0.418085] iommu: Adding device 13e10000.host1x:ctx3 to group 24
[    0.418361] iommu: Adding device 13e10000.host1x:ctx4 to group 25
[    0.418636] iommu: Adding device 13e10000.host1x:ctx5 to group 26
[    0.418926] iommu: Adding device 13e10000.host1x:ctx6 to group 27
[    0.419202] iommu: Adding device 13e10000.host1x:ctx7 to group 28
[    0.419618] iommu: Adding device 150c0000.nvcsi to group 29
[    0.420191] iommu: Adding device 15700000.vi to group 30
[    0.420502] iommu: Adding device 15600000.isp to group 31
[    0.420918] iommu: Adding device 15210000.nvdisplay to group 32
[    0.421451] iommu: Adding device 15340000.vic to group 33
[    0.421653] iommu: Adding device 154c0000.nvenc to group 34
[    0.421844] iommu: Adding device 15480000.nvdec to group 35
[    0.422143] iommu: Adding device 15380000.nvjpg to group 36
[    0.422347] iommu: Adding device 15500000.tsec to group 37
[    0.422539] iommu: Adding device 15100000.tsecb to group 38
[    0.423150] iommu: Adding device 15810000.se to group 39
[    0.423347] iommu: Adding device 15820000.se to group 40
[    0.423542] iommu: Adding device 15830000.se to group 41
[    0.423732] iommu: Adding device 15840000.se to group 42
[    0.424503] iommu: Adding device smmu_test to group 43
[    0.425082] mc: mapped MMIO address: 0xffffff800a680000 -> 0x2c10000
[    0.425093] mc: mapped MMIO address: 0xffffff800a6a0000 -> 0x2c20000
[    0.425104] mc: mapped MMIO address: 0xffffff800a6c0000 -> 0x2c30000
[    0.425114] mc: mapped MMIO address: 0xffffff800a6e0000 -> 0x2c40000
[    0.425124] mc: mapped MMIO address: 0xffffff800a7b0000 -> 0x2c50000
[    0.425132] nv-tegra-mc 2c10000.mc: No mssnvlink node
[    0.425144] mc-err: mcerr ops are set to t18x
[    0.425275] dram-ecc: DRAM ECC disabled-MC_ECC_CONTROL:0x0000000c
[    0.426259] iommu: Adding device 3530000.xhci to group 44
[    0.426271] arm-smmu: forcing sodev map for 3530000.xhci
[    0.426671] iommu: Adding device 3550000.xudc to group 45
[    0.426682] arm-smmu: forcing sodev map for 3550000.xudc
[    0.427365] tegra186-aowake c370000.pmc: WAKE_AOWAKE_CTRL_0 = 3
[    0.427371] tegra186-aowake c370000.pmc: WAKE_AOWAKE_CNTRL_24(PMU_INT) = 256
[    0.427881] iommu: Adding device 17000000.gp10b to group 46
[    0.428827] tegra-reset 5000000.clock: registered 193 resets.
[    0.430746] iommu: Adding device d000000.bpmp to group 47
[    0.430942] bpmp: ping status is 0
[    0.431043] bpmp d000000.bpmp: firmware tag is 4208eb5c85fe47a2235fbc0b8eb87dca
[    0.432946] bpmp d000000.bpmp: probe ok
[    0.435570] iommu: Adding device 2600000.dma to group 48
[    0.436713] GPIO line 459 (pcie0_lane2_mux) hogged as output/low
[    0.436739] GPIO line 424 (wifi-enable) hogged as output/high
[    0.436761] GPIO line 445 (sdmmc-wake-support-input) hogged as input
[    0.436783] GPIO line 446 (sdmmc-wake-support-output) hogged as output/low
[    0.436973] gpiochip_setup_dev: registered GPIOs 320 to 511 on device: gpiochip0 (tegra-gpio)
[    0.440680] GPIO line 315 (wifi-wake-ap) hogged as input
[    0.440846] gpiochip_setup_dev: registered GPIOs 256 to 319 on device: gpiochip1 (tegra-gpio-aon)
[    0.442372] iommu: Adding device 10003000.pcie-controller to group 49
[    0.442387] arm-smmu: forcing sodev map for 10003000.pcie-controller
[    0.442682] iommu: Adding device sound to group 50
[    0.442995] iommu: Adding device 3510000.hda to group 51
[    0.449783] iommu: Adding device c1a0000.aon to group 52
[    0.450224] vdd-ac-bat: 5000 mV 
[    0.451911] vdd-1v8-ap: 1800 mV 
[    0.486710] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[    0.492983] eventlib_kernel: keventlib is initialized, test id: 0
[    0.493474] SCSI subsystem initialized
[    0.493738] libata version 3.00 loaded.
[    0.493982] usbcore: registered new interface driver usbfs
[    0.494034] usbcore: registered new interface driver hub
[    0.494117] usbcore: registered new device driver usb
[    0.497227] random: fast init done
[    0.509076] max77620 4-003c: PMIC Version OTP:0x45 and ES:0x8
[    0.513764] vddio-ddr: at 1125 mV 
[    0.517597] avdd_dsi_csi: 1200 mV 
[    0.521581] vdd-1v8: 1800 mV 
[    0.524979] vdd-3v3-sys: 3300 mV 
[    0.526115] spmic-ldo0: at 1800 mV 
[    0.526830] spmic-ldo1: at 800 mV 
[    0.528982] vddio-3v3: 3300 mV 
[    0.529576] vddio-sdmmc1: 1800 <--> 3300 mV at 3300 mV 
[    0.532981] vdd-rtc: at 800 mV 
[    0.533728] avdd-ts-hv: 1800 <--> 3300 mV at 1800 mV 
[    0.536981] spmic-ldo6: at 1500 mV 
[    0.540978] vdd-pex-1v00: 1000 mV 
[    0.541599] dvdd-pex: 1000 mV 
[    0.542082] GPIO line 253 (spmic_gpio_input) hogged as input
[    0.542234] GPIO line 254 (spmic_gpio_input) hogged as input
[    0.542429] gpiochip_setup_dev: registered GPIOs 248 to 255 on device: gpiochip2 (max77620-gpio)
[    0.544350] max77620 4-003c: max77620 probe successful
[    0.544809] media: Linux media interface: v0.10
[    0.544839] Linux video capture interface: v2.00
[    0.548503] pps_core: LinuxPPS API ver. 1 registered
[    0.548507] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.548521] PTP clock support registered
[    0.549020] tegra_wdt_t18x 30c0000.watchdog: Tegra WDT init timeout = 120 sec
[    0.549038] tegra_wdt_t18x 30c0000.watchdog: Registered successfully
[    0.550638] tegra_fiq_debugger_init: found FIQ source (IRQ 386)
[    0.554828] trusty trusty: trusty version: Built: 16:57:40 Jul 16 2019 
[    0.554841] trusty trusty: selected api version: 3 (requested 3)
[    0.555618] Advanced Linux Sound Architecture Driver Initialized.
[    0.555921] Bluetooth: Core ver 2.22
[    0.555962] NET: Registered protocol family 31
[    0.555965] Bluetooth: HCI device and connection manager initialized
[    0.555972] Bluetooth: HCI socket layer initialized
[    0.555978] Bluetooth: L2CAP socket layer initialized
[    0.555992] Bluetooth: SCO socket layer initialized
[    0.557075] en-vdd-sd: 3300 mV 
[    0.557743] vdd-usb0-5v: 5000 mV 
[    0.558125] vdd-usb1-5v: 5000 mV 
[    0.559476] vdd-3v3: 3300 mV 
[    0.559847] en-vdd-vcm-2v8: 2800 mV 
[    0.560228] vdd-sys-bl: 3300 mV 
[    0.563159] camchar: rtcpu character device driver loaded
[    0.563752] gpio tegra-gpio wake53 for gpio=159(X:7)
[    0.565959] extcon-gpio-states external-connection:extcon@1: Cable state:1, cable id:2
[    0.567448] clocksource: Switched to clocksource arch_sys_counter
[    0.609439] VFS: Disk quotas dquot_6.6.0
[    0.609684] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.610961] tegra-pcie 10003000.pcie-controller: wrong configuration updated in DT, switching to default 2x1, 1x1, 1x1 configuration
[    0.612094] nvmap_heap_init: nvmap_heap_init: created heap block cache
[    0.612747] nvmap: nvmap_select_cache_ops() nvmap cache ops set to roc
[    0.612757] nvmap_page_pool_init: Total RAM pages: 2008918
[    0.612765] nvmap_page_pool_init: nvmap page pool size: 251114 pages (980 MB)
[    0.612937] nvmap_background_zero_thread: PP zeroing thread starting.
[    0.612996] tegra-pcie 10003000.pcie-controller: PCIE: Enable power rails
[    0.613498] tegra-pcie 10003000.pcie-controller: probing port 0, using 2 lanes
[    0.615683] tegra-pcie 10003000.pcie-controller: probing port 2, using 1 lanes
[    0.617582] tegra-gpcdma 2600000.dma: GPC DMA driver register 32 channels
[    0.629174] thermal thermal_zone0: Registering thermal zone thermal_zone0 for type BCPU-therm
[    0.629364] thermal thermal_zone1: Registering thermal zone thermal_zone1 for type MCPU-therm
[    0.629744] thermal thermal_zone2: Registering thermal zone thermal_zone2 for type GPU-therm
[    0.629845] thermal thermal_zone3: Registering thermal zone thermal_zone3 for type PLL-therm
[    0.629986] thermal thermal_zone4: Registering thermal zone thermal_zone4 for type Tboard_tegra
[    0.630124] thermal thermal_zone5: Registering thermal zone thermal_zone5 for type Tdiode_tegra
[    0.630292] thermal thermal_zone6: Registering thermal zone thermal_zone6 for type PMIC-Die
[    0.630550] la/ptsa driver initialized.
[    0.630572] pre_t19x_iso_plat_init(): iso emc max clk=1866000KHz
[    0.630583] pre_t19x_iso_plat_init(): max_iso_bw=26870400KB
[    0.631821] NET: Registered protocol family 2
[    0.633822] TCP established hash table entries: 65536 (order: 7, 524288 bytes)
[    0.634546] TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
[    0.635331] TCP: Hash tables configured (established 65536 bind 65536)
[    0.635409] UDP hash table entries: 4096 (order: 5, 131072 bytes)
[    0.635588] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes)
[    0.636464] NET: Registered protocol family 1
[    0.637557] RPC: Registered named UNIX socket transport module.
[    0.637563] RPC: Registered udp transport module.
[    0.637569] RPC: Registered tcp transport module.
[    0.637578] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.637716] PCI: CLS 0 bytes, default 64
[    0.637983] Trying to unpack rootfs image as initramfs...
[    0.822422] Freeing initrd memory: 5432K
[    0.842382] host1x 13e10000.host1x: initialized
[    0.844730] hw perfevents: enabled with armv8_pmuv3 PMU driver, 7 counters available
[    0.849252] audit: initializing netlink subsys (disabled)
[    0.849314] audit: type=2000 audit(0.736:1): initialized
[    0.850089] workingset: timestamp_bits=46 max_order=21 bucket_order=0
[    0.863380] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.866197] ntfs: driver 2.1.32 [Flags: R/W].
[    0.867871] 9p: Installing v9fs 9p2000 file system support
[    0.872640] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240)
[    0.872773] io scheduler noop registered
[    0.873403] io scheduler cfq registered (default)
[    0.878440] gic 2a41000.agic-controller: GIC IRQ controller registered
[    0.942663] iommu: Adding device aconnect@2a41000:adsp_audio to group 53
[    0.982916] iommu: Adding device 2993000.adsp to group 54
[    0.984109] tegra-aconnect aconnect@2a41000: Tegra ACONNECT bus registered
[    0.987550] tegra-xusb-padctl 3520000.xusb_padctl: VBUS over-current detection enabled
[    0.991831] tegra-pwm 3280000.pwm: PWM clk can sleep in ops
[    0.993290] tegra-pwm 3290000.pwm: PWM clk can sleep in ops
[    0.994608] tegra-pwm 32a0000.pwm: PWM clk can sleep in ops
[    0.996022] tegra-pwm c340000.pwm: PWM clk can sleep in ops
[    1.002422] tsec 15500000.tsec: initialized
[    1.003785] tsec 15100000.tsecb: initialized
[    1.007070] nvdec 15480000.nvdec: initialized
[    1.012995] falcon 15340000.vic: initialized
[    1.014611] falcon 154c0000.nvenc: initialized
[    1.016210] falcon 15380000.nvjpg: initialized
[    1.020400] iommu_context_dev 13e10000.host1x:ctx0: initialized (streamid=56)
[    1.022009] iommu_context_dev 13e10000.host1x:ctx1: initialized (streamid=57)
[    1.023861] iommu_context_dev 13e10000.host1x:ctx2: initialized (streamid=58)
[    1.025442] iommu_context_dev 13e10000.host1x:ctx3: initialized (streamid=59)
[    1.026995] iommu_context_dev 13e10000.host1x:ctx4: initialized (streamid=60)
[    1.028556] iommu_context_dev 13e10000.host1x:ctx5: initialized (streamid=61)
[    1.030083] iommu_context_dev 13e10000.host1x:ctx6: initialized (streamid=62)
[    1.031653] iommu_context_dev 13e10000.host1x:ctx7: initialized (streamid=63)
[    1.034956] tegradccommon 15200000.dc_common: host1x channel mapped
[    1.034970] tegradccommon 15200000.dc_common: dc_common syncpt # 1 allocated
[    1.035006] tegradccommon 15200000.dc_common: dma mapping done
[    1.036207] tegradc 15210000.nvdisplay: disp0 connected to head1->/host1x/sor1
[    1.036272] generic_infoframe_type: 0x87
[    1.036391] tegradc 15210000.nvdisplay: DT parsed successfully
[    1.036428] tegradc 15210000.nvdisplay: Display dc.ffffff800b610000 registered with id=0
[    1.036756] of_fixed_clk: probe of can_clock failed with error -17
[    1.039488] tegra-pcie 10003000.pcie-controller: link 0 down, retrying
[    1.045477] tegra_nvdisp_bandwidth_register_max_config: max config iso bw = 16727000 KB/s
[    1.045485] tegra_nvdisp_bandwidth_register_max_config: max config EMC floor = 665600000 Hz
[    1.045490] tegra_nvdisp_bandwidth_register_max_config: max config hubclk = 357620000 Hz
[    1.045770] tegradc 15210000.nvdisplay: vblank syncpt # 8 for dc 1
[    1.045782] tegradc 15210000.nvdisplay: vpulse3 syncpt # 9 for dc 1
[    1.046593] tegradc 15210000.nvdisplay: dc_hdmi_hotplug_init: couldn't get regulator vdd_hdmi_5v0, -517
[    1.047288] tegra-adma 2930000.adma: Tegra210 ADMA driver registered 10 channels
[    1.048478] tegra-fuse-burn 3820000.efuse:efuse-burn: Fuse burn driver initialized
[    1.049463] kfuse 3830000.kfuse: initialized
[    1.050122] tegradc 15210000.nvdisplay: hdmi: invalid prod list prod_list_hdmi_board
[    1.050131] tegradc 15210000.nvdisplay: hdmi: tegra_hdmi_tmds_range_read(bd) failed
[    1.051520] tegra-pmc-iopower pmc-iopower: NO_IOPOWER setting 0x0
[    1.054384] tegradc 15210000.nvdisplay: probed
[    1.057282] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    1.060314] 3100000.serial: ttyS0 at MMIO 0x3100000 (irq = 36, base_baud = 25500000) is a Tegra
[    1.061971] 3110000.serial: ttyTHS1 at MMIO 0x3110000 (irq = 37, base_baud = 0) is a TEGRA_UART
[    1.063255] c280000.serial: ttyTHS2 at MMIO 0xc280000 (irq = 38, base_baud = 0) is a TEGRA_UART
[    1.063633] serial-tegra 3130000.serial: RX in PIO mode
[    1.064636] 3130000.serial: ttyTHS3 at MMIO 0x3130000 (irq = 39, base_baud = 0) is a TEGRA_UART
[    1.065267] Console: switching to colour frame buffer device 80x30
[    1.065284] tegradc 15210000.nvdisplay: fb registered
[    1.065470] gpio tegra-gpio wake21 for gpio=121(P:1)
[    1.066195] [drm] Initialized
[    1.076846] brd: module loaded
[    1.081917] loop: module loaded
[    1.082008] tegra_profiler: version: 1.134, samples/io: 47/26
[    1.082165] tegra_profiler: auth: init
[    1.082512] nct1008_nct72 7-004c: starting parse dt
[    1.082604] nct1008_nct72 7-004c: !!!Found deprecated property!!!
[    1.082613] nct1008_nct72 7-004c: success parsing dt
[    1.082703] nct1008_nct72 7-004c: success in enabling tmp451 VDD rail
[    1.083008] THERMAL EST: found 3 subdevs
[    1.083016] THERMAL EST num_resources: 0
[    1.083022] [THERMAL EST subdev 0]
[    1.083030] [THERMAL EST subdev 1]
[    1.083066] [THERMAL EST subdev 2]
[    1.083489] thermal thermal_zone7: Registering thermal zone thermal_zone7 for type thermal-fan-est
[    1.083495] THERMAL EST: thz register success.
[    1.083655] THERMAL EST: end of probe, return err: 0
[    1.084748] hisi_sas: driver version v1.6
[    1.088842] tegra-ahci 3507000.ahci-sata: AHCI 0001.0301 32 slots 2 ports 3 Gbps 0x1 impl platform mode
[    1.088856] tegra-ahci 3507000.ahci-sata: flags: 64bit ncq sntf pm led pmp pio slum part deso sadm apst 
[    1.089897] scsi host0: tegra_ahci
[    1.090878] scsi host1: tegra_ahci
[    1.091083] ata1: SATA max UDMA/133 mmio [mem 0x03507000-0x03508fff] port 0x100 irq 24
[    1.091089] ata2: DUMMY
[    1.097588] libphy: Fixed MDIO Bus: probed
[    1.098175] tun: Universal TUN/TAP device driver, 1.6
[    1.098180] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[    1.098882] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[    1.098887] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    1.098924] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k
[    1.098928] igb: Copyright (c) 2007-2014 Intel Corporation.
[    1.098976] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k
[    1.098980] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
[    1.099013] Intel(R) 10GbE PCI Express Linux Network Driver - version 4.6.4
[    1.099018] Copyright(c) 1999 - 2017 Intel Corporation.
[    1.100394] eqos 2490000.ether_qos: can't get pllrefe_vcoout clk (-2)
[    1.104275] eqos 2490000.ether_qos: Setting local MAC: 0 4 4b 8c e8 26
[    1.104433] libphy: dwc_phy: probed
[    1.104899] bcm54xx_low_power_mode(): put phy in iddq-lp mode
[    1.107336] PPP generic driver version 2.4.2
[    1.107511] PPP BSD Compression module registered
[    1.107517] PPP Deflate Compression module registered
[    1.107537] PPP MPPE Compression module registered
[    1.107543] NET: Registered protocol family 24
[    1.107600] usbcore: registered new interface driver r8152
[    1.107638] usbcore: registered new interface driver asix
[    1.107671] usbcore: registered new interface driver ax88179_178a
[    1.107696] usbcore: registered new interface driver cdc_ether
[    1.107721] usbcore: registered new interface driver net1080
[    1.107750] usbcore: registered new interface driver cdc_subset
[    1.107776] usbcore: registered new interface driver zaurus
[    1.107813] usbcore: registered new interface driver cdc_ncm
[    1.107981] VFIO - User Level meta-driver version: 0.3
[    1.109778] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.109799] ehci-pci: EHCI PCI platform driver
[    1.109846] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.109855] ohci-pci: OHCI PCI platform driver
[    1.109885] ohci-platform: OHCI generic platform driver
[    1.114629] tegra-xusb 3530000.xhci: USB2 port 0 has OTG_CAP
[    1.114976] nct1008_nct72 7-004c: LOC shutdown limit 107
[    1.115482] nct1008_nct72 7-004c: EXT shutdown limit 107
[    1.116309] tegra-xusb 3530000.xhci: extcon 0: ffffffc1eac70800 id
[    1.117059] usbcore: registered new interface driver uas
[    1.117101] usbcore: registered new interface driver usb-storage
[    1.117182] usbcore: registered new interface driver usbserial
[    1.118733] tegra-xusb 3530000.xhci: Firmware timestamp: 2018-12-26 10:30:04 UTC, Version: 55.12 release
[    1.121122] tegra-xudc-new 3550000.xudc: device count: 1
[    1.122304] tegra-xudc-new 3550000.xudc: vbus state: 0
[    1.122335] tegra-xudc-new 3550000.xudc: entering ELPG
[    1.123142] tegra-xudc-new 3550000.xudc: entering ELPG done
[    1.123685] mousedev: PS/2 mouse device common for all mice
[    1.123755] usbcore: registered new interface driver xpad
[    1.143505] tegra-xusb 3530000.xhci: xHCI Host Controller
[    1.143528] tegra-xusb 3530000.xhci: new USB bus registered, assigned bus number 1
[    1.144407] tegra-xusb 3530000.xhci: hcc params 0x0184fd25 hci version 0x100 quirks 0x00050810
[    1.144448] tegra-xusb 3530000.xhci: irq 70, io mem 0x03530000
[    1.144683] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    1.144691] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.144698] usb usb1: Product: xHCI Host Controller
[    1.144703] usb usb1: Manufacturer: Linux 4.9.140-tegra xhci-hcd
[    1.144709] usb usb1: SerialNumber: 3530000.xhci
[    1.145225] hub 1-0:1.0: USB hub found
[    1.145289] hub 1-0:1.0: 4 ports detected
[    1.145719] tegra-xusb 3530000.xhci: xHCI Host Controller
[    1.145733] tegra-xusb 3530000.xhci: new USB bus registered, assigned bus number 2
[    1.145949] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[    1.145957] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.145962] usb usb2: Product: xHCI Host Controller
[    1.145968] usb usb2: Manufacturer: Linux 4.9.140-tegra xhci-hcd
[    1.145974] usb usb2: SerialNumber: 3530000.xhci
[    1.146452] hub 2-0:1.0: USB hub found
[    1.146497] hub 2-0:1.0: 3 ports detected
[    1.147619] nct1008_nct72 7-004c: initial LOC temp: 24000 
[    1.147932] nct1008_nct72 7-004c: initial EXT temp: 44000 
[    1.148597] nct1008_nct72 7-004c: hi_b:-11, lo_b:0
[    1.148898] gpio tegra-gpio-aon wake35 for gpio=16(V:0)
[    1.149095] nct1008_nct72 7-004c: nct1008_probe: initialized
[    1.224011] max77686-rtc max77620-rtc: rtc core: registered max77620-rtc as rtc0
[    1.225362] Wake73 for irq=42
[    1.226608] rtc rtc1: alarm rtc device
[    1.226652] tegra_rtc c2a0000.rtc: rtc core: registered c2a0000.rtc as rtc1
[    1.226680] tegra_rtc c2a0000.rtc: Tegra internal Real Time Clock
[    1.226847] i2c /dev entries driver
[    1.229214] max77620-power max77620-power: Event recorder REG_NVERC : 0x0
[    1.233982] parse_throttle_dt_data: Num cap clks = 4
[    1.233991] parse_throttle_dt_data: clk=mcpu type=1
[    1.233997] parse_throttle_dt_data: clk=bcpu type=2
[    1.234006] parse_throttle_dt_data: clk=gpu type=4
[    1.234011] parse_throttle_dt_data: clk=emc type=3
[    1.235208] tegra_throttle_probe: probe successful. #cdevs=4
[    1.235830] FAN dev name: pwm-fan
[    1.235887] FAN:gpio request success.
[    1.235897] FAN: can't find tach_gpio
[    1.235927] pwm_fan_driver pwm-fan: cap state:7, cap pwm:255
[    1.236181] pwm_fan_driver pwm-fan: got pwm for fan. polarity is inversed
[    1.236189] pwm_fan_driver pwm-fan: tach period: 1000
[    1.236528] pwm_fan_driver pwm-fan: index 0: pwm=0, rpm=0, rru=40, rrd=40, state:2
[    1.236537] pwm_fan_driver pwm-fan: index 1: pwm=80, rpm=1000, rru=2, rrd=2, state:2
[    1.236545] pwm_fan_driver pwm-fan: index 2: pwm=120, rpm=2000, rru=1, rrd=1, state:2
[    1.236551] pwm_fan_driver pwm-fan: index 3: pwm=160, rpm=3000, rru=1, rrd=1, state:2
[    1.236557] pwm_fan_driver pwm-fan: index 4: pwm=255, rpm=4000, rru=1, rrd=1, state:3
[    1.236587] pwm_fan_driver pwm-fan: index 5: pwm=255, rpm=5000, rru=1, rrd=1, state:3
[    1.236593] pwm_fan_driver pwm-fan: index 6: pwm=255, rpm=6000, rru=1, rrd=1, state:3
[    1.236598] pwm_fan_driver pwm-fan: index 7: pwm=255, rpm=7000, rru=1, rrd=1, state:4
[    1.236605] pwm_fan_driver pwm-fan: index 8: pwm=255, rpm=10000, rru=1, rrd=1, state:4
[    1.236612] pwm_fan_driver pwm-fan: index 9: pwm=255, rpm=11000, rru=1, rrd=1, state:4
[    1.238329] device-mapper: uevent: version 1.0.3
[    1.239261] device-mapper: ioctl: 4.35.0-ioctl (2016-06-23) initialised: dm-devel@redhat.com
[    1.246455] cpufreq: platform driver Initialization: pass
[    1.247086] cpuidle: Initializing cpuidle driver init for Denver cluster
[    1.247202] cpuidle: Initializing cpuidle driver init for A57 cluster
[    1.248143] sdhci: Secure Digital Host Controller Interface driver
[    1.248147] sdhci: Copyright(c) Pierre Ossman
[    1.248150] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.249637] sdhci-tegra 3460000.sdhci: Client registration for eMC Successful
[    1.251606] CMDQ: cmdq_platfm_init successful
[    1.252750] CQE: CMD_TIMING bit set for R1B DCMD
[    1.255150] sdhci-tegra 3440000.sdhci: Client registration for eMC Successful
[    1.261804] sdhci-tegra 3400000.sdhci: Got CD GPIO
[    1.261851] sdhci-tegra 3400000.sdhci: Got WP GPIO
[    1.263764] sdhci-tegra 3400000.sdhci: Client registration for eMC Successful
[    1.265627] sdhci-tegra 3400000.sdhci: wakeup init done, cdirq 257
[    1.269280] tegra-se-elp 3ad0000.se_elp: tegra_se_elp_probe: complete
[    1.270426] tegra-se-nvhost 15810000.se: initialized
[    1.271532] tegra-se-nvhost 15810000.se: tegra_se_probe: complete
[    1.272379] tegra-se-nvhost 15820000.se: initialized
[    1.273337] tegra-se-nvhost 15820000.se: tegra_se_probe: complete
[    1.273999] tegra-se-nvhost 15830000.se: initialized
[    1.274756] tegra-se-nvhost 15830000.se: tegra_se_probe: complete
[    1.275346] tegra-se-nvhost 15840000.se: initialized
[    1.276347] tegra-se-nvhost 15840000.se: tegra_se_probe: complete
[    1.276579] hidraw: raw HID events driver (C) Jiri Kosina
[    1.277572] usbcore: registered new interface driver usbhid
[    1.277575] usbhid: USB HID core driver
[    1.279286] tegra-i2c 3160000.i2c: no acknowledge from address 0x42
[    1.279314] ina3221x 0-0042: ina3221 reset failure status: 0xffffff87
[    1.279420] ina3221x: probe of 0-0042 failed with error -121
[    1.279650] tegra-i2c 3160000.i2c: no acknowledge from address 0x43
[    1.279677] ina3221x 0-0043: ina3221 reset failure status: 0xffffff87
[    1.279760] ina3221x: probe of 0-0043 failed with error -121
[    1.282086] tegra186-cam-rtcpu b000000.rtcpu: Trace buffer configured at IOVA=0xbff00000
[    1.284290] tegra-ivc ivc-b000000.rtcpu: region 0: iova=0xbfef0000-0xbfefdb7f size=56192
[    1.284518] tegra-ivc ivc-b000000.rtcpu:echo@0: echo: ver=0 grp=1 RX[16x64]=0x1000-0x1480 TX[16x64]=0x1480-0x1900
[    1.284647] tegra-ivc ivc-b000000.rtcpu:i2c@480: i2c: ver=0 grp=1 RX[8x128]=0x1900-0x1d80 TX[8x128]=0x1d80-0x2200
[    1.284872] tegra-ivc ivc-b000000.rtcpu:vinotify@12c0: vinotify: ver=0 grp=1 RX[64x128]=0x2200-0x4280 TX[64x128]=0x4280-0x6300
[    1.286141] tegra-ivc ivc-b000000.rtcpu:mods@32c0: mods: ver=0 grp=1 RX[1x64]=0x6300-0x63c0 TX[1x64]=0x63c0-0x6480
[    1.286212] tegra-ivc ivc-b000000.rtcpu:ivccontrol@52c0: ivccontrol: ver=0 grp=1 RX[16x320]=0x6480-0x7900 TX[16x320]=0x7900-0x8d80
[    1.286267] tegra-ivc ivc-b000000.rtcpu:ivccapture@72c0: ivccapture: ver=0 grp=1 RX[16x64]=0x8d80-0x9200 TX[16x64]=0x9200-0x9680
[    1.286319] tegra-ivc ivc-b000000.rtcpu:dbg@7c00: dbg: ver=0 grp=1 RX[1x384]=0x9680-0x9880 TX[1x384]=0x9880-0x9a80
[    1.286419] tegra-ivc ivc-b000000.rtcpu:dbg@7e00: dbg: ver=0 grp=1 RX[1x8192]=0x9a80-0xbb00 TX[1x8192]=0xbb00-0xdb80
[    1.286721] tegra186-cam-rtcpu b000000.rtcpu: using cam RTCPU IRQ (51)
[    1.286724] tegra186-cam-rtcpu b000000.rtcpu: tegra_camrtc_mon_create is successful
[    1.287253] tegra186-cam-rtcpu b000000.rtcpu: firmware version cpu=sce cmd=5 sha1=3ecb1dca25fa98771f988f238c025334776c9a96
[    1.288858] tegra_aon c1a0000.aon: tegra aon driver probe OK
[    1.289267] tegra186-aondbg aondbg: aondbg driver probe() OK
[    1.289425] register_ari_mca_banks: Registered MCA ROC:IOB
[    1.289491] register_ari_mca_banks: Registered MCA ROC:CCE
[    1.289793] tegra18-bridge 2390000.axi2apb: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.289796] tegra18-bridge 2390000.axi2apb: enabled timeout = 11155000
[    1.289798] tegra18-bridge 2390000.axi2apb: bridge probed OK
[    1.289852] tegra18-bridge 23a0000.axi2apb: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.289854] tegra18-bridge 23a0000.axi2apb: enabled timeout = 11155000
[    1.289856] tegra18-bridge 23a0000.axi2apb: bridge probed OK
[    1.289899] tegra18-bridge 23b0000.axi2apb: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.289901] tegra18-bridge 23b0000.axi2apb: enabled timeout = 11155000
[    1.289903] tegra18-bridge 23b0000.axi2apb: bridge probed OK
[    1.289948] tegra18-bridge 23c0000.axi2apb: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.289950] tegra18-bridge 23c0000.axi2apb: enabled timeout = 11155000
[    1.289952] tegra18-bridge 23c0000.axi2apb: bridge probed OK
[    1.289996] tegra18-bridge 23d0000.axi2apb: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.289998] tegra18-bridge 23d0000.axi2apb: enabled timeout = 11155000
[    1.290000] tegra18-bridge 23d0000.axi2apb: bridge probed OK
[    1.290044] tegra18-bridge 2100000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290049] tegra18-bridge 2100000.axip2p: enabled timeout = 11155000
[    1.290051] tegra18-bridge 2100000.axip2p: bridge probed OK
[    1.290094] tegra18-bridge 2110000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290099] tegra18-bridge 2110000.axip2p: enabled timeout = 11155000
[    1.290101] tegra18-bridge 2110000.axip2p: bridge probed OK
[    1.290143] tegra18-bridge 2120000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290148] tegra18-bridge 2120000.axip2p: enabled timeout = 11155000
[    1.290150] tegra18-bridge 2120000.axip2p: bridge probed OK
[    1.290195] tegra18-bridge 2130000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290199] tegra18-bridge 2130000.axip2p: enabled timeout = 11155000
[    1.290201] tegra18-bridge 2130000.axip2p: bridge probed OK
[    1.290245] tegra18-bridge 2140000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290248] tegra18-bridge 2140000.axip2p: enabled timeout = 11155000
[    1.290250] tegra18-bridge 2140000.axip2p: bridge probed OK
[    1.290291] tegra18-bridge 2150000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290296] tegra18-bridge 2150000.axip2p: enabled timeout = 11155000
[    1.290298] tegra18-bridge 2150000.axip2p: bridge probed OK
[    1.290341] tegra18-bridge 2160000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290346] tegra18-bridge 2160000.axip2p: enabled timeout = 11155000
[    1.290348] tegra18-bridge 2160000.axip2p: bridge probed OK
[    1.290391] tegra18-bridge 2170000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290396] tegra18-bridge 2170000.axip2p: enabled timeout = 11155000
[    1.290397] tegra18-bridge 2170000.axip2p: bridge probed OK
[    1.290440] tegra18-bridge 2180000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290445] tegra18-bridge 2180000.axip2p: enabled timeout = 11155000
[    1.290447] tegra18-bridge 2180000.axip2p: bridge probed OK
[    1.290497] tegra18-bridge 2190000.axip2p: axi_cbb clk rate = 115 MHZ, timeout = 97000 useconds
[    1.290501] tegra18-bridge 2190000.axip2p: enabled timeout = 11155000
[    1.290503] tegra18-bridge 2190000.axip2p: bridge probed OK
[    1.290562] **** A57 ECC: Enabled
[    1.290564] tegra18_a57_serr_init: on CPU 5 a A57 Core
[    1.290622] tegra18x_actmon d230000.actmon: in actmon_register()...
[    1.291069] tegra18x_actmon d230000.actmon: initialization Completed for the device mc_all
[    1.291492] hw perfevents: enabled with denver15_uncore_pmu PMU driver, 3 counters available
[    1.291606] denver_knobs_init:MTS_VERSION:43068234
[    1.292968] nvpmodel: initialized successfully
[    1.293714] trusty-virtio trusty:virtio: initializing
[    1.293804] trusty_ipc virtio0: vring0: va(pa)  ffffffc1e69e8000(0) qsz 32 notifyid 1
[    1.293810] trusty_ipc virtio0: vring1: va(pa)  ffffffc1e69ea000(0) qsz 32 notifyid 2
[    1.293873] trusty-virtio trusty:virtio: initializing done
[    1.294046] trusty_ipc virtio0: is online
[    1.295509] mmc0: SDHCI controller on 3460000.sdhci [3460000.sdhci] using ADMA 64-bit with 64 bit addr
[    1.295866] usbcore: registered new interface driver snd-usb-audio
[    1.299824] mmc1: SDHCI controller on 3440000.sdhci [3440000.sdhci] using ADMA 64-bit with 64 bit addr
[    1.303579] input: tegra-hda HDMI/DP,pcm=3 as /devices/3510000.hda/sound/card0/input0
[    1.303716] input: tegra-hda HDMI/DP,pcm=7 as /devices/3510000.hda/sound/card0/input1
[    1.316234] gpio tegra-gpio wake71 for gpio=125(P:5)
[    1.316297] mmc2: SDHCI controller on 3400000.sdhci [3400000.sdhci] using ADMA 64-bit with 64 bit addr
[    1.385003] mmc0: mmc_decode_ext_csd: CMDQ supported: depth: 31, cmdq_support: 1
[    1.399414] mmc0: periodic cache flush enabled
[    1.399476] mmc0: new HS400 Enhanced strobe MMC card at address 0001
[    1.400018] mmcblk0: mmc0:0001 032G34 29.1 GiB 
[    1.404102] OPE platform probe
[    1.404171] OPE platform probe successful
[    1.404256] mmcblk0boot0: mmc0:0001 032G34 partition 1 4.00 MiB
[    1.404469] mmcblk0boot1: mmc0:0001 032G34 partition 2 4.00 MiB
[    1.404645] mmcblk0rpmb: mmc0:0001 032G34 partition 3 4.00 MiB
[    1.408278] ata1: SATA link down (SStatus 0 SControl 300)
[    1.408715]  mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20 p21 p22 p23 p24 p25 p26 p27 p28 p29 p30 p31
[    1.412908] tegra-asoc: sound: This is a dummy codec
[    1.446384] tegra-pcie 10003000.pcie-controller: link 0 down, retrying
[    1.458044] tegra-asoc: sound: ADMAIF1 <-> ADMAIF1 mapping ok
[    1.458117] tegra-asoc: sound: ADMAIF2 <-> ADMAIF2 mapping ok
[    1.458188] tegra-asoc: sound: ADMAIF3 <-> ADMAIF3 mapping ok
[    1.458253] tegra-asoc: sound: ADMAIF4 <-> ADMAIF4 mapping ok
[    1.458319] tegra-asoc: sound: ADMAIF5 <-> ADMAIF5 mapping ok
[    1.458383] tegra-asoc: sound: ADMAIF6 <-> ADMAIF6 mapping ok
[    1.458446] tegra-asoc: sound: ADMAIF7 <-> ADMAIF7 mapping ok
[    1.458514] tegra-asoc: sound: ADMAIF8 <-> ADMAIF8 mapping ok
[    1.458576] tegra-asoc: sound: ADMAIF9 <-> ADMAIF9 mapping ok
[    1.458641] tegra-asoc: sound: ADMAIF10 <-> ADMAIF10 mapping ok
[    1.458707] tegra-asoc: sound: ADMAIF11 <-> ADMAIF11 mapping ok
[    1.458772] tegra-asoc: sound: ADMAIF12 <-> ADMAIF12 mapping ok
[    1.458839] tegra-asoc: sound: ADMAIF13 <-> ADMAIF13 mapping ok
[    1.458903] tegra-asoc: sound: ADMAIF14 <-> ADMAIF14 mapping ok
[    1.458967] tegra-asoc: sound: ADMAIF15 <-> ADMAIF15 mapping ok
[    1.459034] tegra-asoc: sound: ADMAIF16 <-> ADMAIF16 mapping ok
[    1.459105] tegra-asoc: sound: ADMAIF17 <-> ADMAIF17 mapping ok
[    1.459171] tegra-asoc: sound: ADMAIF18 <-> ADMAIF18 mapping ok
[    1.459237] tegra-asoc: sound: ADMAIF19 <-> ADMAIF19 mapping ok
[    1.459302] tegra-asoc: sound: ADMAIF20 <-> ADMAIF20 mapping ok
[    1.476167] usb 1-3: new high-speed USB device number 2 using tegra-xusb
[    1.479251] u32 classifier
[    1.479254]     Actions configured
[    1.479310] Initializing XFRM netlink socket
[    1.479884] NET: Registered protocol family 10
[    1.480443] NET: Registered protocol family 17
[    1.480453] NET: Registered protocol family 15
[    1.480512] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    1.480545] Bluetooth: RFCOMM socket layer initialized
[    1.480561] Bluetooth: RFCOMM ver 1.11
[    1.480565] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[    1.480569] Bluetooth: HIDP socket layer initialized
[    1.480583] 9pnet: Installing 9P2000 support
[    1.480615] Key type dns_resolver registered
[    1.481307] Registered cp15_barrier emulation handler
[    1.481324] Registered setend emulation handler
[    1.482183] registered taskstats version 1
[    1.484896] isp 15600000.isp: initialized
[    1.484959] driver not enabled, cannot register any devices
[    1.488547] nvcsi 150c0000.nvcsi: initialized
[    1.488559] driver not enabled, cannot register any devices
[    1.493609] tegra-vi4 15700000.vi: initialized
[    1.494088] gpio tegra-gpio-aon wake29 for gpio=56(FF:0)
[    1.494157] gpio tegra-gpio-aon wake67 for gpio=57(FF:1)
[    1.494218] gpio tegra-gpio-aon wake68 for gpio=58(FF:2)
[    1.494333] input: gpio-keys as /devices/gpio-keys/input/input2
[    1.502884] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[    1.502892] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[    1.502896] usb 1-3: Product: MODEM-LTE-FLASHER
[    1.502900] usb 1-3: Manufacturer: u-blox
[    1.504218] driver not enabled, cannot register any devices
[    1.519176] mmc2: hw tuning done ...
[    1.519219] mmc2: new ultra high speed SDR104 SDXC card at address 0001
[    1.524538] tegra_rtc c2a0000.rtc: setting system clock to 2000-01-01 01:00:13 UTC (946688413)
[    1.525307] mmcblk mmc0:0001: Card claimed for testing.
[    1.525321] mmcblk mmc2:0001: Card claimed for testing.
[    1.525419] mmcblk2: mmc2:0001 BC2QT 59.6 GiB 
[    1.526780]  mmcblk2: p1
[    1.553333] bpmp: mounted debugfs mirror
[    1.554167] bwmgr: missing cdev-type property
[    1.556544] mmc1: hw tuning done ...
[    1.560002] spmic-ldo0: disabling
[    1.560170] spmic-ldo1: disabling
[    1.560318] vdd-usb0-5v: disabling
[    1.560320] vdd-usb1-5v: disabling
[    1.560322] vdd-3v3: disabling
[    1.560324] en-vdd-vcm-2v8: disabling
[    1.560326] vdd-sys-bl: disabling
[    1.560328] ALSA device list:
[    1.560330]   #0: tegra-hda at 0x3518000 irq 383
[    1.560332]   #1: tegra-snd-t186ref-mobile-rt565x
[    1.562651] Freeing unused kernel memory: 8576K
[    1.562694] mmc1: new ultra high speed SDR104 SDIO card at address 0001
[    1.590651] L4T-INITRD Build DATE: Sat Jan  1 01:00:13 UTC 2000
[    1.596649] Root device found: mmcblk0p1
[    1.599052] Found dev node: /dev/mmcblk0p1
[    1.622818] EXT4-fs (mmcblk0p1): mounted filesystem with ordered data mode. Opts: (null)
[    1.623883] Rootfs mounted over mmcblk0p1
[    1.655952] Switching from initrd to actual rootfs
[    1.813326] systemd[1]: System time before build time, advancing clock.
[    1.847720] ip_tables: (C) 2000-2006 Netfilter Core Team
[    1.850101] tegra-pcie 10003000.pcie-controller: link 0 down, retrying
[    1.851492] tegra-pcie 10003000.pcie-controller: link 0 down, ignoring
[    1.891019] cgroup: cgroup2: unknown option "nsdelegate"
[    1.914185] systemd[1]: systemd 237 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)
[    1.917349] systemd[1]: Detected architecture arm64.
[    2.028948] systemd[1]: Set hostname to <bernard-acpu>.
[    2.155266] systemd[1]: File /lib/systemd/system/systemd-journald.service:36 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.
[    2.155290] systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
[    2.257567] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[    2.357593] random: systemd: uninitialized urandom read (16 bytes read)
[    2.370733] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    2.371050] random: systemd: uninitialized urandom read (16 bytes read)
[    2.374242] systemd[1]: Created slice System Slice.
[    2.374356] random: systemd: uninitialized urandom read (16 bytes read)
[    2.374674] systemd[1]: Listening on RPCbind Server Activation Socket.
[    2.375213] systemd[1]: Listening on Journal Audit Socket.
[    2.375723] systemd[1]: Listening on Journal Socket (/dev/log).
[    2.414398] gpio tegra-gpio-aon wake30 for gpio=60(FF:4)
[    2.425771] EXT4-fs (mmcblk0p1): re-mounted. Opts: (null)
[    2.683524] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[    2.727126] systemd-journald[2301]: Received request to flush runtime journal from PID 1
[    3.087514] tegra-pcie 10003000.pcie-controller: link 2 down, retrying
[    3.089559] tegra-pcie 10003000.pcie-controller: link 2 down, ignoring
[    3.291964] tegra-pcie 10003000.pcie-controller: PCIE: no end points detected
[    3.292429] tegra-pcie 10003000.pcie-controller: PCIE: Disable power rails
[    3.423015] using random self ethernet address
[    3.423034] using random host ethernet address
[    3.442855] Mass Storage Function, version: 2009/09/11
[    3.442864] LUN: removable file: (no medium)
[    3.446292] random: crng init done
[    3.446311] random: 7 urandom warning(s) missed due to ratelimiting
[    3.449131] using random self ethernet address
[    3.449150] using random host ethernet address
[    3.482062] rndis0: HOST MAC 2e:82:e9:71:f7:d8
[    3.482281] rndis0: MAC 2e:82:e9:71:f7:d9
[    3.482923] usb0: HOST MAC 2e:82:e9:71:f7:da
[    3.482963] usb0: MAC 2e:82:e9:71:f7:db
[    3.482990] tegra-xudc-new 3550000.xudc: exiting ELPG
[    3.486068] tegra-xudc-new 3550000.xudc: exiting ELPG done
[    3.486088] tegra-xudc-new 3550000.xudc: ep 0 (type: 0, dir: out) enabled
[    3.486144] tegra-xudc-new 3550000.xudc: entering ELPG
[    3.486806] tegra-xudc-new 3550000.xudc: entering ELPG done
[    3.488378] tegra-xudc-new 3550000.xudc: exiting ELPG
[    3.489404] tegra-xudc-new 3550000.xudc: exiting ELPG done
[    3.489430] tegra-xudc-new 3550000.xudc: entering ELPG
[    3.490052] tegra-xudc-new 3550000.xudc: entering ELPG done
[    3.495302] l4tbr0: port 1(rndis0) entered blocking state
[    3.495307] l4tbr0: port 1(rndis0) entered disabled state
[    3.495473] device rndis0 entered promiscuous mode
[    3.505118] IPv6: ADDRCONF(NETDEV_UP): rndis0: link is not ready
[    3.515214] l4tbr0: port 2(usb0) entered blocking state
[    3.515222] l4tbr0: port 2(usb0) entered disabled state
[    3.517232] device usb0 entered promiscuous mode
[    3.529426] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[    4.040938] gpio tegra-gpio wake18 for gpio=101(M:5)
[    4.051736] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[    4.120572] nvgpu: 17000000.gp10b             railgate_enable_store:283  [INFO]  railgate is disabled.
[    4.272973] Wake76 for irq=199
[    4.272979] Wake77 for irq=199
[    4.272982] Wake78 for irq=199
[    4.272985] Wake79 for irq=199
[    4.272987] Wake80 for irq=199
[    4.272989] Wake81 for irq=199
[    4.272992] Wake82 for irq=199
[    4.273043] tegra-xusb 3530000.xhci: Upgrade port 0 to USB3.0
[    4.273049] tegra-xusb 3530000.xhci: Upgrade port 1 to USB3.0
[    4.371739] usb usb2: usb_suspend_both: status 0
[    4.378422] dhd_module_init in
[    4.378478] found wifi platform device bcmdhd_wlan
[    4.382067] wifi_platform_get_country_code_map: could not get country_code_map
[    4.382088] wifi_plat_dev_drv_probe:platform country code map is not available
[    4.382111] Power-up adapter 'DHD generic adapter'
[    4.382121] wifi_platform_set_power = 1
[    4.425313] usb 1-3: USB disconnect, device number 2
[    4.571572] usb usb1: usb_suspend_both: status 0
[    4.591529] wifi_platform_bus_enumerate device present 1
[    4.639230] wifi_platform_bus_enumerate device present 0
[    4.640166] F1 signature read @0x18000000=0x17214354
[    4.646779] F1 signature OK, socitype:0x1 chip:0x4354 rev:0x1 pkg:0x2
[    4.647894] DHD: dongle ram size is set to 786432(orig 786432) at 0x180000
[    4.647987] wifi_platform_get_mac_addr
[    4.655576] ids dhd_log_netlink_init
[    4.659585]  wl_event_handler : 
[    4.659594] tsk Enter, tsk = 0xffffffc1e0ac1a90
[    4.659606] wl_create_event_handler(): thread:wl_event_handler:149e started
[    4.663101] dhd_attach(): thread:dhd_watchdog_thread:14a3 started
[    4.664115] dhd_attach(): thread:dhd_dpc:14a9 started
[    4.667536] dhd_attach(): thread:dhd_rxf:14aa started
[    4.667546] dhd_deferred_work_init: work queue initialized 
[    4.668422] 
               Dongle Host Driver, version 1.201.82 (r)
               Compiled from 
[    4.668903] Register interface [wlan0]  MAC: 00:04:4b:8c:e8:24

[    4.668909] dhd_prot_ioctl : bus is down. we have nothing to do
[    4.669931] sdhci-tegra 3440000.sdhci: Tuning done, restoring the best tap value : 62
[    4.670974] wifi_platform_set_power = 0
[    4.701769] usbcore: registered new interface driver cdc_acm
[    4.701773] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[    4.792144] CPU1: shutdown
[    4.811573] psci: Retrying again to check for CPU kill
[    4.811580] psci: CPU1 killed.
[    4.895685] CPU2: shutdown
[    4.895706] psci: CPU2 killed.
[    4.928790] zram: Added device: zram0
[    4.932051] zram: Added device: zram1
[    4.939050] zram: Added device: zram2
[    4.944130] zram: Added device: zram3
[    4.946081] zram: Added device: zram4
[    4.975001] zram0: detected capacity change from 0 to 824287232
[    4.983495] usb 1-3: new high-speed USB device number 3 using tegra-xusb
[    4.998655] Adding 804964k swap on /dev/zram0.  Priority:5 extents:1 across:804964k SS
[    5.006579] zram1: detected capacity change from 0 to 824287232
[    5.009534] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[    5.009539] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[    5.009542] usb 1-3: Product: MODEM-LTE-FLASHER
[    5.009545] usb 1-3: Manufacturer: u-blox
[    5.030056] Adding 804964k swap on /dev/zram1.  Priority:5 extents:1 across:804964k SS
[    5.035996] zram2: detected capacity change from 0 to 824287232
[    5.049635] Adding 804964k swap on /dev/zram2.  Priority:5 extents:1 across:804964k SS
[    5.053843] zram3: detected capacity change from 0 to 824287232
[    5.079345] Adding 804964k swap on /dev/zram3.  Priority:5 extents:1 across:804964k SS
[    5.086198] zram4: detected capacity change from 0 to 824287232
[    5.104977] Adding 804964k swap on /dev/zram4.  Priority:5 extents:1 across:804964k SS
[    5.378245] 
               
               Dongle Host Driver, version 1.201.82 (r)
               Compiled from 
[    5.378255] wl_android_wifi_on in
[    5.378260] wifi_platform_set_power = 1
[    5.588406] vdd-1v8: voltage operation not allowed
[    5.588452] sdhci-tegra 3440000.sdhci: could not set regulator OCR (-1)
[    5.607826] vdd-1v8: voltage operation not allowed
[    5.607879] sdhci-tegra 3440000.sdhci: could not set regulator OCR (-1)
[    5.628649] vdd-1v8: voltage operation not allowed
[    5.628696] sdhci-tegra 3440000.sdhci: could not set regulator OCR (-1)
[    5.631189] vdd-1v8: voltage operation not allowed
[    5.631224] sdhci-tegra 3440000.sdhci: could not set regulator OCR (-1)
[    5.741640] vdd-1v8: voltage operation not allowed
[    5.741689] sdhci-tegra 3440000.sdhci: could not set regulator OCR (-1)
[    5.742716] vdd-1v8: voltage operation not allowed
[    5.742759] sdhci-tegra 3440000.sdhci: could not set regulator OCR (-1)
[    5.744549] vdd-1v8: voltage operation not allowed
[    5.744584] sdhci-tegra 3440000.sdhci: could not set regulator OCR (-1)
[    5.744636] sdhci-tegra 3440000.sdhci: Tuning done, restoring the best tap value : 62
[    5.745453] F1 signature read @0x18000000=0x17214354
[    5.751140] F1 signature OK, socitype:0x1 chip:0x4354 rev:0x1 pkg:0x2
[    5.751957] DHD: dongle ram size is set to 786432(orig 786432) at 0x180000
[    5.845335] dhdsdio_write_vars: Download, Upload and compare of NVRAM succeeded.
[    5.887757] dhd_bus_init: enable 0x06, ready 0x06 (waited 0us)
[    5.888149] gpio tegra-gpio-aon wake69 for gpio=59(FF:3)
[    5.888240] gpio tegra-gpio-aon wake69 for gpio=59(FF:3)
[    5.888244] Enabling wake69
[    5.889318] wifi_platform_get_mac_addr
[    5.892083] Firmware up: op_mode=0x0005, MAC=00:04:4b:8c:e8:24
[    5.897749] clm path from default:/lib/firmware/brcm/bcmdhd.clm_blob
[    5.897837] Skipping the clm download. len:0 memblk:          (null)
[    5.900990] dhd_preinit_ioctls pspretend_threshold for HostAPD failed  -23
[    5.907538] Firmware version = wl0: May 17 2019 16:59:40 version 7.35.349.79 (r714996 CY) FWID 01-e527e2ad
[    5.910657] dhd_interworking_enable: failed to set WNM info, ret=-23
[    5.947728] dhd_ndo_add_ip: ndo ip addr add failed, ret = -23
[    5.947745] dhd_inet6_work_handler: Adding host ip for NDO failed -23
[    5.996990] CFGP2P-ERROR) wl_cfgp2p_add_p2p_disc_if : 
[    5.996993] P2P interface registered
[    6.005675] WLC_E_IF: NO_IF set, event Ignored
[    6.425700] usb 1-3: USB disconnect, device number 3
[    6.567704] usb usb1: usb_suspend_both: status 0
[    6.987516] usb 1-3: new high-speed USB device number 4 using tegra-xusb
[    7.013791] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[    7.013817] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[    7.013835] usb 1-3: Product: MODEM-LTE-FLASHER
[    7.013849] usb 1-3: Manufacturer: u-blox
[    8.426343] usb 1-3: USB disconnect, device number 4
[    8.571775] usb usb1: usb_suspend_both: status 0
[    8.571811] tegra-xusb 3530000.xhci: entering ELPG
[    8.576882] tegra-xusb 3530000.xhci: entering ELPG done
[    8.755257] tegra-xusb 3530000.xhci: exiting ELPG
[    8.762827] tegra-xusb 3530000.xhci: Firmware timestamp: 2018-12-26 10:30:04 UTC, Version: 55.12 release
[    8.764362] tegra-xusb 3530000.xhci: exiting ELPG done
[    8.765869] usb usb2: usb_suspend_both: status 0
[    8.991611] usb 1-3: new high-speed USB device number 5 using tegra-xusb
[    9.018067] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[    9.018097] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[    9.018119] usb 1-3: Product: MODEM-LTE-FLASHER
[    9.018132] usb 1-3: Manufacturer: u-blox
[   10.427077] usb 1-3: USB disconnect, device number 5
[   10.579957] usb usb1: usb_suspend_both: status 0
[   10.987575] usb 1-3: new high-speed USB device number 6 using tegra-xusb
[   11.014026] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   11.014053] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   11.014078] usb 1-3: Product: MODEM-LTE-FLASHER
[   11.014092] usb 1-3: Manufacturer: u-blox
[   12.030849] Bridge firewalling registered
[   12.065578] nf_conntrack version 0.5.0 (65536 buckets, 262144 max)
[   12.405745] Netfilter messages via NETLINK v0.30.
[   12.410818] ctnetlink v0.93: registering with nfnetlink.
[   12.425724] usb 1-3: USB disconnect, device number 6
[   12.540404] IPv6: ADDRCONF(NETDEV_UP): docker0: link is not ready
[   12.567585] usb usb1: usb_suspend_both: status 0
[   12.567595] tegra-xusb 3530000.xhci: entering ELPG
[   12.571042] tegra-xusb 3530000.xhci: entering ELPG done
[   12.754765] tegra-xusb 3530000.xhci: exiting ELPG
[   12.759462] tegra-xusb 3530000.xhci: Firmware timestamp: 2018-12-26 10:30:04 UTC, Version: 55.12 release
[   12.760487] tegra-xusb 3530000.xhci: exiting ELPG done
[   12.987498] usb 1-3: new high-speed USB device number 7 using tegra-xusb
[   13.013569] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   13.013576] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   13.013579] usb 1-3: Product: MODEM-LTE-FLASHER
[   13.013582] usb 1-3: Manufacturer: u-blox
[   13.799307] eqos 2490000.ether_qos eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[   13.800405] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   14.425890] usb 1-3: USB disconnect, device number 7
[   14.571616] usb usb1: usb_suspend_both: status 0
[   14.983682] usb 1-3: new high-speed USB device number 8 using tegra-xusb
[   15.009658] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   15.009663] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   15.009666] usb 1-3: Product: MODEM-LTE-FLASHER
[   15.009668] usb 1-3: Manufacturer: u-blox
[   16.426003] usb 1-3: USB disconnect, device number 8
[   16.567570] usb usb1: usb_suspend_both: status 0
[   16.567580] tegra-xusb 3530000.xhci: entering ELPG
[   16.570918] tegra-xusb 3530000.xhci: entering ELPG done
[   16.755205] tegra-xusb 3530000.xhci: exiting ELPG
[   16.758882] tegra-xusb 3530000.xhci: Firmware timestamp: 2018-12-26 10:30:04 UTC, Version: 55.12 release
[   16.759957] tegra-xusb 3530000.xhci: exiting ELPG done
[   16.987484] usb 1-3: new high-speed USB device number 9 using tegra-xusb
[   17.013484] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   17.013488] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   17.013491] usb 1-3: Product: MODEM-LTE-FLASHER
[   17.013494] usb 1-3: Manufacturer: u-blox
[   18.427673] usb 1-3: USB disconnect, device number 9
[   18.575999] usb usb1: usb_suspend_both: status 0
[   19.024321] tegra-xusb 3530000.xhci: entering ELPG
[   19.032767] tegra-xusb 3530000.xhci: entering ELPG done
[   25.370217] serial-tegra c280000.serial: configured rate out of supported range by -0.6 %

I don’t have a way to look at this, but ttyACM is a serial UART device special file. When a driver loads which can handle this UART a file in “/dev/” will be created (it’s really in RAM and talks to the driver). Different UARTs might use different device naming conventions, e.g., a lot of them will create a “/dev/ttyUSB” file, especially the FTDI chipsets. Some manufacturers will use that driver, but create a “udev” rule to rename the device. I wouldn’t be surprised if you get a “/dev/ttyUSB#” file which just needs the “udev” rule to rename it, but I also wouldn’t be surprised if the driver itself was just left out.

On a related note, if the device is plug-n-play (which includes USB), then some manufacturers put in their own IDs even if the generic driver works for the hardware. At this point you’d need whatever “driver” relates that ID to the generic driver. Lots of variations on that.

A good place to read about ttyACM is here:
http://www.jetsonhacks.com/2017/11/19/install-ttyacm-module-nvidia-jetson-tx-development-kits/

I suspect there is just something needing install…either a user space package with a udev rule, or a kernel module to act as a driver (or both).

As an aid while you explore this, take a look at how to examine your running kernel’s configuration list:

# A scrollable and searchable list:
gunzip < /proc/config.gz | less
# A case insensitive list of anything "acm":
gunzip < /proc/config.gz | egrep -i 'acm'

Note that if you have these, then you have kernel support (but may require another package for a udev rule or to link a custom device to the default driver):

CONFIG_USB_ACM=m
CONFIG_USB_F_ACM=y
CONFIG_USB_CONFIGFS_ACM=y

An entry with “=y” is built into the kernel. An entry with “=m” is configured as a module, and would be located somewhere in a subdirectory of “/lib/modules/$(uname -r)/”. A prefix of a hash mark ‘#’ implies the feature was not enabled.

Thanks for the reply… I’ll take a look. My initial thought is that it’s gotta be a driver issue… the device keeps trying to enumerate but disconnects each time. Take a look at this particular snippet of the dmesg output:

[    7.013791] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[    7.013817] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[    7.013835] usb 1-3: Product: MODEM-LTE-FLASHER
[    7.013849] usb 1-3: Manufacturer: u-blox
[    8.426343] usb 1-3: USB disconnect, device number 4
[    8.571775] usb usb1: usb_suspend_both: status 0
[    8.571811] tegra-xusb 3530000.xhci: entering ELPG
[    8.576882] tegra-xusb 3530000.xhci: entering ELPG done
[    8.755257] tegra-xusb 3530000.xhci: exiting ELPG
[    8.762827] tegra-xusb 3530000.xhci: Firmware timestamp: 2018-12-26 10:30:04 UTC, Version: 55.12 release
[    8.764362] tegra-xusb 3530000.xhci: exiting ELPG done
[    8.765869] usb usb2: usb_suspend_both: status 0
[    8.991611] usb 1-3: new high-speed USB device number 5 using tegra-xusb
[    9.018067] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[    9.018097] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[    9.018119] usb 1-3: Product: MODEM-LTE-FLASHER
[    9.018132] usb 1-3: Manufacturer: u-blox
[   10.427077] usb 1-3: USB disconnect, device number 5
[   10.579957] usb usb1: usb_suspend_both: status 0
[   10.987575] usb 1-3: new high-speed USB device number 6 using tegra-xusb
[   11.014026] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   11.014053] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   11.014078] usb 1-3: Product: MODEM-LTE-FLASHER
[   11.014092] usb 1-3: Manufacturer: u-blox
[   12.425724] usb 1-3: USB disconnect, device number 6
[   12.567585] usb usb1: usb_suspend_both: status 0
[   12.567595] tegra-xusb 3530000.xhci: entering ELPG
[   12.571042] tegra-xusb 3530000.xhci: entering ELPG done
[   12.754765] tegra-xusb 3530000.xhci: exiting ELPG
[   12.759462] tegra-xusb 3530000.xhci: Firmware timestamp: 2018-12-26 10:30:04 UTC, Version: 55.12 release
[   12.760487] tegra-xusb 3530000.xhci: exiting ELPG done
[   12.987498] usb 1-3: new high-speed USB device number 7 using tegra-xusb
[   13.013569] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   13.013576] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   13.013579] usb 1-3: Product: MODEM-LTE-FLASHER
[   13.013582] usb 1-3: Manufacturer: u-blox
[   14.425890] usb 1-3: USB disconnect, device number 7
[   14.571616] usb usb1: usb_suspend_both: status 0
[   14.983682] usb 1-3: new high-speed USB device number 8 using tegra-xusb
[   15.009658] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   15.009663] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   15.009666] usb 1-3: Product: MODEM-LTE-FLASHER
[   15.009668] usb 1-3: Manufacturer: u-blox
[   16.426003] usb 1-3: USB disconnect, device number 8
[   16.567570] usb usb1: usb_suspend_both: status 0
[   16.567580] tegra-xusb 3530000.xhci: entering ELPG
[   16.570918] tegra-xusb 3530000.xhci: entering ELPG done
[   16.755205] tegra-xusb 3530000.xhci: exiting ELPG
[   16.758882] tegra-xusb 3530000.xhci: Firmware timestamp: 2018-12-26 10:30:04 UTC, Version: 55.12 release
[   16.759957] tegra-xusb 3530000.xhci: exiting ELPG done
[   16.987484] usb 1-3: new high-speed USB device number 9 using tegra-xusb
[   17.013484] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
[   17.013488] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
[   17.013491] usb 1-3: Product: MODEM-LTE-FLASHER
[   17.013494] usb 1-3: Manufacturer: u-blox
[   18.427673] usb 1-3: USB disconnect, device number 9

I don’t know about this particular case, but many modems also require extra firmware to be installed. Firmware actually loads into the modem itself, whereas drivers run in the Linux kernel. The Linux kernel expects a particular interface, and if the firmware is wrong, then it would fail for various unpredictable reasons. This could cause a disconnect, but there are also signal quality issues which could do this. I have no way of knowing, but “USB disconnect” tends to imply it is a USB signal issue rather than a firmware issue (even so, you will need to check first if there is firmware, since firmware might cause this).

USB suspend is mentioned, and invalid behavior for suspend states could be an issue, but the time stamps are so early on and so close together that this seems unlikely.

If you run the command “lsusb”, then each USB device will produce an “ID”. An example ID would look something like “0955:7c18” (though this is another device…a recovery mode TX2). You can select a particular USB device via its ID. Assuming you substitute the correct ID for the modem, then the command to provide a verbose USB listing for that one device, and to log the result, is like this:

sudo lsusb -d 0955:7c18 -vvv 2>&1 | tee log_usb.txt

Possibly the verbose lsusb could offer some clue, but I don’t know. If you hover your mouse over the quote icon in one of your existing posts, then a paper clip icon will also show up. The paper clip icon will allow you to attach the verbose lsusb log.

Thanks for the continued assistance. I’ve been doing some debugging and have also spoken with the manufacturer of the modem.

I’ve verified that the modem is working. I plugged it into a full Ubuntu 18.04 desktop and it enumerates/functions as expected. And as I mentioned, the modem worked with Jetpack 3.3 before I upgraded to 4.2.1. This leads me to believe it must be a driver issue.

I spoke with the manufacturer (u-blox), and they said that the modem requires cdc_acm and rndis_host. Based on the dmesg logs, the module is starting up in firmware flashing mode as expected, but never transitions to normal operating mode.

I took your advice and checked /proc/config.gz. Here’s the output:

$gunzip < /proc/config.gz | grep -i 'acm'
# CONFIG_FB_MACMODES is not set
CONFIG_USB_ACM=m
CONFIG_USB_F_ACM=y
CONFIG_USB_CONFIGFS_ACM=y
 
$gunzip < /proc/config.gz | grep -i 'cdc'
CONFIG_USB_NET_CDCETHER=y
# CONFIG_USB_NET_CDC_EEM is not set
CONFIG_USB_NET_CDC_NCM=y
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
CONFIG_USB_NET_CDC_SUBSET_ENABLE=y
CONFIG_USB_NET_CDC_SUBSET=y
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CDCE925 is not set

So it does appear that cdc_acm is missing. I also checked lsmod and under /lib/modules, and was not able to find cdc_acm. I was able to find rndis_host, so that is fine.

I checked on the functioning Ubuntu 18.04 desktop, and cdc_acm is both present and loaded.

Based on the jetsonhacks github link you provided, it seems cdc_acm has been dropped since 28.1. Not sure why NVIDIA would elect to remove this, but anyways it looks like I need to add it back in myself.

One issue is that the installation provided on jetsonhacks explicitly says it is only set up for L4T 28.1 and I’m not sure what I’d need to do to install it on 32.2.

Really appreciate all of the help so far!

I believe you are on the right track. The ACM is just for a serial UART over USB, and very likely the CDC_ACM is the “udev rule” I told you about, or support for the udev rule. Not only will the UART be needed to talk to the modem, once the modem is accessed, a second driver has to run the modem itself (a USB data pipe -> ACM uart -> modem).

Adding a kernel module has very little difference on R32.2 versus R28.1. There are some flash steps which differ if device trees are involved, and perhaps the kernels are sufficiently far apart in version that drivers themselves may have been added or removed, but likely you are ok just using the R28.1 information if you are only adding a module. The official docs provide some information on adding kernels or modules.

My own approach would be to download the kernel source using source_sync.sh (which will be in the “Linux_for_Tegra/” directory of the R32.2 host PC), and get the source like this:

./source_sync.sh -k tegra-l4t-r32.2.0
# Actual build root will then be:
cd sources/kernel/kernel-4.9/

Follow the official documents, but instead of “make tegra_defconfig”, copy your running Jetson’s “/proc/config.gz” somewhere safe and never lose the copy. If you “gunzip” that file, and then rename it “.config”, followed by editing it to set “CONFIG_LOCALVERSION” correctly, then you have a 100% exact match to your running system. Another app (like “make nconfig”) can then search for and set the CDC_ACM symbol. If you can use “=m” (module), then do that. If you have to use “=y”, this is ok, but it means you’ll need to install both the kernel Image and the module instead of just the module. Module install is a copy of a single file when you avoid changing the entire Image. “.config” is what “make tegra_defconfig” creates, and it’ll be almost like your running system, but it won’t be an exact match unless you are lucky…placing the gunzip’d config.gz as “.config” replaces “make tegra_defconfig”.

If you run “uname -r” on the running Jetson with the original kernel, then you’ll get a version which is a combination of the base kernel version and a suffix. The suffix is from CONFIG_LOCALVERSION. If for example the kernel version shows as “4.9.140-tegra”, then this is the suffix to add:

CONFIG_LOCALVERSION="-tegra"

You can always ask more questions if you hit a snag with the docs or build or install. I do recommend that if you install a new Image (the kernel itself) that you save a copy of the original “/boot/Image” prior to doing this. Without U-Boot it isn’t easy to get back in place, but it can help if something goes wrong. Adding just a module is rather safe.

New update… I think I found the culprit:

Upon further inspection, L4T 32.2 does include cdc_acm… modinfo shows it’s present.

However, it appears that udev is what’s causing the error here. I enable udev info logs, and here’s what I found:

Sep 11 19:23:06 bernard-acpu kernel: [ 2987.495149] usb 1-3: new high-speed USB device number 14 using tegra-xusb
Sep 11 19:23:06 bernard-acpu kernel: [ 2987.521127] usb 1-3: New USB device found, idVendor=1546, idProduct=1140
Sep 11 19:23:06 bernard-acpu kernel: [ 2987.521132] usb 1-3: New USB device strings: Mfr=3, Product=2, SerialNumber=0
Sep 11 19:23:06 bernard-acpu kernel: [ 2987.521135] usb 1-3: Product: MODEM-LTE-FLASHER
Sep 11 19:23:06 bernard-acpu kernel: [ 2987.521137] usb 1-3: Manufacturer: u-blox
Sep 11 19:23:06 bernard-acpu mtp-probe: checking bus 1, device 14: "/sys/devices/3530000.xhci/usb1/1-3"
Sep 11 19:23:06 bernard-acpu mtp-probe: bus: 1, device: 14 was not an MTP device
Sep 11 19:23:08 bernard-acpu kernel: [ 2988.928804] usb 1-3: USB disconnect, device number 14

From what I’ve read so far, mtp-probe is a catch-all udev rule for when the device doesn’t match any other rules.

I’m not sure if the device is actually being incorrectly caught by mtp rules, or has just fallen back to mtp rules since no other matching rules were found.

We are on the right track… linuxdev you were right to initially suspect udev!

Sometimes a udev rule can require a driver to be present, and so if you are missing CDC_ACM in the kernel, but you have the udev rule, then the udev rule might still break until the kernel feature is available (it just depends on what the rule is doing whether or not it’ll correctly rename…some “/dev/” files must have the driver present or they can’t exist).

Alright, so I’ve done a bunch more debugging and still haven’t had any luck. Here’s some new things:

First, I tried writing a custom udev rule to bind the 4G modem to cdc_acm… but it doesn’t work. I’ve verified that the rule runs, but the echo command for writing the bus id into the bind file for the driver exits with code 1. Here’s the rule:

ACTION=="add", SUBSYSTEMS=="usb", ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1140", RUN+="/bin/sh -c 'modprobe cdc_acm && echo -n $kernel > /sys/bus/usb/drivers/cdc_acm/bind'"

Also, I’ve run udevadm monitor for both the working Desktop and non-working TX2. It seems like the Desktop initially binds the device to the “usb” driver, which kicks off the rest of the process. The TX2 does not bind the device to the “usb” driver (nor any driver at all). It seems like the device enumerates, realizes that no driver has been bound to it, and shuts itself off. It repeats this process a few times until it gives up. Here are the outputs of udevadm monitor for each computer:

Desktop (working properly)

$ udevadm monitor -e
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[4658.663254] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8290
SUBSYSTEM=usb
TYPE=2/2/0

KERNEL[4658.666332] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=8291
SUBSYSTEM=usb
TYPE=2/2/0

KERNEL[4658.666478] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=bind
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
DRIVER=usb
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8292
SUBSYSTEM=usb
TYPE=2/2/0

UDEV  [4658.680511] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=MODEM-LTE-FLASHER
ID_MODEL_ENC=MODEM-LTE-FLASHER
ID_MODEL_ID=1140
ID_REVISION=0000
ID_SERIAL=u-blox_MODEM-LTE-FLASHER
ID_USB_INTERFACES=:020201:
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8290
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4658680421

UDEV  [4658.681295] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
ID_USB_CLASS_FROM_DATABASE=Communications
ID_USB_SUBCLASS_FROM_DATABASE=Abstract (modem)
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=8291
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4658681135

UDEV  [4658.681968] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=bind
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=MODEM-LTE-FLASHER
ID_MODEL_ENC=MODEM-LTE-FLASHER
ID_MODEL_ID=1140
ID_REVISION=0000
ID_SERIAL=u-blox_MODEM-LTE-FLASHER
ID_USB_INTERFACES=:020201:
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8292
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4658680421

KERNEL[4662.349912] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=8293
SUBSYSTEM=usb
TYPE=2/2/0

KERNEL[4662.350685] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=unbind
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8294
SUBSYSTEM=usb
TYPE=2/2/0

KERNEL[4662.350845] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=remove
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8295
SUBSYSTEM=usb
TYPE=2/2/0

UDEV  [4662.353011] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=remove
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
ID_USB_CLASS_FROM_DATABASE=Communications
ID_USB_SUBCLASS_FROM_DATABASE=Abstract (modem)
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=8293
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4658681135

UDEV  [4662.355531] unbind   /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=unbind
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8294
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4658680421

UDEV  [4662.357697] remove   /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=remove
BUSNUM=001
DEVNAME=/dev/bus/usb/001/017
DEVNUM=017
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
MAJOR=189
MINOR=16
PRODUCT=1546/1140/0
SEQNUM=8295
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4662351073

KERNEL[4664.915010] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/018
DEVNUM=018
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
MAJOR=189
MINOR=17
PRODUCT=1546/1146/100
SEQNUM=8296
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.919187] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
INTERFACE=224/1/3
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01icE0isc01ip03in00
PRODUCT=1546/1146/100
SEQNUM=8297
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.920303] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0 (net)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0
IFINDEX=7
INTERFACE=usb0
SEQNUM=8298
SUBSYSTEM=net

KERNEL[4664.920396] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/rx-0 (queues)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/rx-0
SEQNUM=8299
SUBSYSTEM=queues

KERNEL[4664.920458] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/tx-0 (queues)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/tx-0
SEQNUM=8300
SUBSYSTEM=queues

KERNEL[4664.920831] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
DRIVER=rndis_host
INTERFACE=224/1/3
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01icE0isc01ip03in00
PRODUCT=1546/1146/100
SEQNUM=8301
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.920996] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1
DEVTYPE=usb_interface
DRIVER=rndis_host
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in01
PRODUCT=1546/1146/100
SEQNUM=8302
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.921131] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1
DEVTYPE=usb_interface
DRIVER=rndis_host
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in01
PRODUCT=1546/1146/100
SEQNUM=8303
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.921230] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2
DEVTYPE=usb_interface
INTERFACE=2/2/1
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic02isc02ip01in02
PRODUCT=1546/1146/100
SEQNUM=8304
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.921365] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2/tty/ttyACM0 (tty)
ACTION=add
DEVNAME=/dev/ttyACM0
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2/tty/ttyACM0
MAJOR=166
MINOR=0
SEQNUM=8305
SUBSYSTEM=tty

KERNEL[4664.921459] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2
DEVTYPE=usb_interface
DRIVER=cdc_acm
INTERFACE=2/2/1
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic02isc02ip01in02
PRODUCT=1546/1146/100
SEQNUM=8306
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.921686] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3
DEVTYPE=usb_interface
DRIVER=cdc_acm
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in03
PRODUCT=1546/1146/100
SEQNUM=8307
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.921834] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3
DEVTYPE=usb_interface
DRIVER=cdc_acm
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in03
PRODUCT=1546/1146/100
SEQNUM=8308
SUBSYSTEM=usb
TYPE=239/2/1

KERNEL[4664.921980] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=bind
BUSNUM=001
DEVNAME=/dev/bus/usb/001/018
DEVNUM=018
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
DRIVER=usb
MAJOR=189
MINOR=17
PRODUCT=1546/1146/100
SEQNUM=8309
SUBSYSTEM=usb
TYPE=239/2/1

UDEV  [4664.927038] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/018
DEVNUM=018
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=MODEM-LTE
ID_MODEL_ENC=MODEM-LTE
ID_MODEL_ID=1146
ID_REVISION=0100
ID_SERIAL=u-blox_MODEM-LTE_000000000100
ID_SERIAL_SHORT=000000000100
ID_USB_INTERFACES=:e00103:0a0000:020201:
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
MAJOR=189
MINOR=17
PRODUCT=1546/1146/100
SEQNUM=8296
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664926941

UDEV  [4664.928217] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
DRIVER=rndis_host
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=224/1/3
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01icE0isc01ip03in00
PRODUCT=1546/1146/100
SEQNUM=8297
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664928107

UDEV  [4664.928826] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1
DEVTYPE=usb_interface
DRIVER=rndis_host
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in01
PRODUCT=1546/1146/100
SEQNUM=8302
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664928735

UDEV  [4664.929512] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.1
DEVTYPE=usb_interface
DRIVER=rndis_host
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in01
PRODUCT=1546/1146/100
SEQNUM=8303
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664928735

KERNEL[4664.929838] move     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/enp0s20f0u2u4 (net)
ACTION=move
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/enp0s20f0u2u4
DEVPATH_OLD=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0
IFINDEX=7
INTERFACE=enp0s20f0u2u4
SEQNUM=8310
SUBSYSTEM=net

UDEV  [4664.930642] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2
DEVTYPE=usb_interface
DRIVER=cdc_acm
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=2/2/1
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic02isc02ip01in02
PRODUCT=1546/1146/100
SEQNUM=8304
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664930545

UDEV  [4664.931621] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2/tty/ttyACM0 (tty)
ACTION=add
DEVLINKS=/dev/serial/by-id/usb-u-blox_MODEM-LTE_000000000100-if02 /dev/serial/by-path/pci-0000:00:14.0-usb-0:2.4:1.2
DEVNAME=/dev/ttyACM0
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2/tty/ttyACM0
ID_BUS=usb
ID_MM_CANDIDATE=1
ID_MODEL=MODEM-LTE
ID_MODEL_ENC=MODEM-LTE
ID_MODEL_ID=1146
ID_PATH=pci-0000:00:14.0-usb-0:2.4:1.2
ID_PATH_TAG=pci-0000_00_14_0-usb-0_2_4_1_2
ID_PCI_CLASS_FROM_DATABASE=Serial bus controller
ID_PCI_INTERFACE_FROM_DATABASE=XHCI
ID_PCI_SUBCLASS_FROM_DATABASE=USB controller
ID_REVISION=0100
ID_SERIAL=u-blox_MODEM-LTE_000000000100
ID_SERIAL_SHORT=000000000100
ID_TYPE=generic
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_DRIVER=cdc_acm
ID_USB_INTERFACES=:e00103:0a0000:020201:
ID_USB_INTERFACE_NUM=02
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
MAJOR=166
MINOR=0
SEQNUM=8305
SUBSYSTEM=tty
TAGS=:systemd:
USEC_INITIALIZED=4664931542

UDEV  [4664.932800] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.2
DEVTYPE=usb_interface
DRIVER=cdc_acm
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=2/2/1
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic02isc02ip01in02
PRODUCT=1546/1146/100
SEQNUM=8306
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664930545

UDEV  [4664.933143] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3 (usb)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3
DEVTYPE=usb_interface
DRIVER=cdc_acm
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in03
PRODUCT=1546/1146/100
SEQNUM=8307
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664933056

UDEV  [4664.933786] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.3
DEVTYPE=usb_interface
DRIVER=cdc_acm
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=10/0/0
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in03
PRODUCT=1546/1146/100
SEQNUM=8308
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664933056

UDEV  [4664.953153] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/enp0s20f0u2u4 (net)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/enp0s20f0u2u4
ID_BUS=usb
ID_MM_CANDIDATE=1
ID_MODEL=MODEM-LTE
ID_MODEL_ENC=MODEM-LTE
ID_MODEL_ID=1146
ID_NET_DRIVER=rndis_host
ID_NET_LINK_FILE=/lib/systemd/network/99-default.link
ID_NET_NAME=enp0s20f0u2u4
ID_NET_NAME_PATH=enp0s20f0u2u4
ID_PATH=pci-0000:00:14.0-usb-0:2.4:1.0
ID_PATH_TAG=pci-0000_00_14_0-usb-0_2_4_1_0
ID_REVISION=0100
ID_SERIAL=u-blox_MODEM-LTE_000000000100
ID_SERIAL_SHORT=000000000100
ID_TYPE=generic
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_DRIVER=rndis_host
ID_USB_INTERFACES=:e00103:0a0000:020201:
ID_USB_INTERFACE_NUM=00
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
IFINDEX=7
INTERFACE=enp0s20f0u2u4
INTERFACE_OLD=usb0
SEQNUM=8298
SUBSYSTEM=net
SYSTEMD_ALIAS=/sys/subsystem/net/devices/enp0s20f0u2u4
TAGS=:systemd:
USEC_INITIALIZED=4664949849

UDEV  [4664.954195] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/tx-0 (queues)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/tx-0
SEQNUM=8300
SUBSYSTEM=queues
USEC_INITIALIZED=4664954167

UDEV  [4664.954221] add      /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/rx-0 (queues)
ACTION=add
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0/queues/rx-0
SEQNUM=8299
SUBSYSTEM=queues
USEC_INITIALIZED=4664954176

UDEV  [4664.954788] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0 (usb)
ACTION=bind
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0
DEVTYPE=usb_interface
DRIVER=rndis_host
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=224/1/3
MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01icE0isc01ip03in00
PRODUCT=1546/1146/100
SEQNUM=8301
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664928107

UDEV  [4664.955976] bind     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4 (usb)
ACTION=bind
BUSNUM=001
DEVNAME=/dev/bus/usb/001/018
DEVNUM=018
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MODEL=MODEM-LTE
ID_MODEL_ENC=MODEM-LTE
ID_MODEL_ID=1146
ID_REVISION=0100
ID_SERIAL=u-blox_MODEM-LTE_000000000100
ID_SERIAL_SHORT=000000000100
ID_USB_INTERFACES=:e00103:0a0000:020201:
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
MAJOR=189
MINOR=17
PRODUCT=1546/1146/100
SEQNUM=8309
SUBSYSTEM=usb
TYPE=239/2/1
USEC_INITIALIZED=4664926941

UDEV  [4664.957077] move     /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/enp0s20f0u2u4 (net)
ACTION=move
DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/enp0s20f0u2u4
DEVPATH_OLD=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.4/1-2.4:1.0/net/usb0
ID_BUS=usb
ID_MM_CANDIDATE=1
ID_MODEL=MODEM-LTE
ID_MODEL_ENC=MODEM-LTE
ID_MODEL_ID=1146
ID_NET_DRIVER=rndis_host
ID_NET_LINK_FILE=/lib/systemd/network/99-default.link
ID_NET_NAME=enp0s20f0u2u4
ID_NET_NAME_PATH=enp0s20f0u2u4
ID_PATH=pci-0000:00:14.0-usb-0:2.4:1.0
ID_PATH_TAG=pci-0000_00_14_0-usb-0_2_4_1_0
ID_REVISION=0100
ID_SERIAL=u-blox_MODEM-LTE_000000000100
ID_SERIAL_SHORT=000000000100
ID_TYPE=generic
ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
ID_USB_DRIVER=rndis_host
ID_USB_INTERFACES=:e00103:0a0000:020201:
ID_USB_INTERFACE_NUM=00
ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
IFINDEX=7
INTERFACE=enp0s20f0u2u4
SEQNUM=8310
SUBSYSTEM=net
SYSTEMD_ALIAS=/sys/subsystem/net/devices/enp0s20f0u2u4 /sys/subsystem/net/devices/enp0s20f0u2u4
TAGS=:systemd:
USEC_INITIALIZED=4664949849

KERNEL[4681.739941] add      /kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service)
SEQNUM=8311
SUBSYSTEM=cgroup

KERNEL[4681.739965] add      /kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service)
SEQNUM=8312
SUBSYSTEM=cgroup

KERNEL[4681.739978] add      /kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8313
SUBSYSTEM=cgroup

KERNEL[4681.739992] add      /kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service)
SEQNUM=8314
SUBSYSTEM=cgroup

KERNEL[4681.740082] add      /kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service)
SEQNUM=8315
SUBSYSTEM=cgroup

KERNEL[4681.740168] add      /kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8316
SUBSYSTEM=cgroup

KERNEL[4681.740198] add      /kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8317
SUBSYSTEM=cgroup

KERNEL[4681.740214] add      /kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service)
SEQNUM=8318
SUBSYSTEM=cgroup

KERNEL[4681.740229] add      /kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service)
SEQNUM=8319
SUBSYSTEM=cgroup

UDEV  [4681.740788] add      /kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service)
SEQNUM=8311
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681740720

UDEV  [4681.741019] add      /kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service)
SEQNUM=8312
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681740952

UDEV  [4681.741166] add      /kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8313
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681741134

UDEV  [4681.741310] add      /kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service)
SEQNUM=8315
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681741283

UDEV  [4681.741668] add      /kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8316
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681741640

UDEV  [4681.741812] add      /kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service)
SEQNUM=8318
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681741711

UDEV  [4681.741926] add      /kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service)
SEQNUM=8319
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681741891

UDEV  [4681.742014] add      /kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service)
SEQNUM=8314
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681741981

KERNEL[4681.742282] add      /kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service)
SEQNUM=8320
SUBSYSTEM=cgroup

KERNEL[4681.742312] add      /kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service)
SEQNUM=8321
SUBSYSTEM=cgroup

KERNEL[4681.742349] add      /kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service)
SEQNUM=8322
SUBSYSTEM=cgroup

UDEV  [4681.742697] add      /kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service)
SEQNUM=8320
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681742672

UDEV  [4681.742800] add      /kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service)
SEQNUM=8321
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681742768

UDEV  [4681.742841] add      /kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8317
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681742781

UDEV  [4681.742873] add      /kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service)
SEQNUM=8322
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681742838

KERNEL[4681.742971] add      /kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8323
SUBSYSTEM=cgroup

KERNEL[4681.743086] add      /kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service)
SEQNUM=8324
SUBSYSTEM=cgroup

KERNEL[4681.743396] add      /kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8325
SUBSYSTEM=cgroup

KERNEL[4681.743424] add      /kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service)
SEQNUM=8326
SUBSYSTEM=cgroup

UDEV  [4681.743457] add      /kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8323
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681743409

UDEV  [4681.743488] add      /kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service)
SEQNUM=8324
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681743436

KERNEL[4681.743596] add      /kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8327
SUBSYSTEM=cgroup

KERNEL[4681.743635] add      /kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service)
SEQNUM=8328
SUBSYSTEM=cgroup

UDEV  [4681.744062] add      /kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8327
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681744032

UDEV  [4681.744110] add      /kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service)
SEQNUM=8328
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681744084

UDEV  [4681.744289] add      /kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8325
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681744227

UDEV  [4681.744420] add      /kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service)
SEQNUM=8326
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681744388

KERNEL[4681.745669] add      /kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service)
SEQNUM=8329
SUBSYSTEM=cgroup

KERNEL[4681.745695] add      /kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service)
SEQNUM=8330
SUBSYSTEM=cgroup

KERNEL[4681.745734] add      /kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8331
SUBSYSTEM=cgroup

KERNEL[4681.745756] add      /kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8332
SUBSYSTEM=cgroup

KERNEL[4681.745776] add      /kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8333
SUBSYSTEM=cgroup

UDEV  [4681.746440] add      /kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service)
SEQNUM=8329
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681746399

UDEV  [4681.746624] add      /kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service)
SEQNUM=8330
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681746593

KERNEL[4681.746741] add      /kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8334
SUBSYSTEM=cgroup

UDEV  [4681.746889] add      /kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8331
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681746857

UDEV  [4681.747274] add      /kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8334
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681747240

UDEV  [4681.747461] add      /kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8333
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681747431

UDEV  [4681.747676] add      /kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8332
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681747620

KERNEL[4681.755789] add      /kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8335
SUBSYSTEM=cgroup

UDEV  [4681.756752] add      /kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8335
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681756685

KERNEL[4681.761207] add      /kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service)
SEQNUM=8336
SUBSYSTEM=cgroup

KERNEL[4681.761236] add      /kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8337
SUBSYSTEM=cgroup

KERNEL[4681.761586] add      /kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service)
SEQNUM=8338
SUBSYSTEM=cgroup

UDEV  [4681.762136] add      /kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service)
SEQNUM=8336
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681762064

UDEV  [4681.762551] add      /kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8337
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681762484

UDEV  [4681.762719] add      /kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service)
SEQNUM=8338
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681762625

KERNEL[4681.763108] add      /kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8339
SUBSYSTEM=cgroup

UDEV  [4681.764062] add      /kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=add
DEVPATH=/kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8339
SUBSYSTEM=cgroup
USEC_INITIALIZED=4681763995

KERNEL[4702.077887] remove   /kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8340
SUBSYSTEM=cgroup

KERNEL[4702.077975] remove   /kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8341
SUBSYSTEM=cgroup

KERNEL[4702.078098] remove   /kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service)
SEQNUM=8342
SUBSYSTEM=cgroup

KERNEL[4702.078160] remove   /kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service)
SEQNUM=8343
SUBSYSTEM=cgroup

KERNEL[4702.078237] remove   /kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service)
SEQNUM=8344
SUBSYSTEM=cgroup

KERNEL[4702.078313] remove   /kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8345
SUBSYSTEM=cgroup

KERNEL[4702.078405] remove   /kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8346
SUBSYSTEM=cgroup

KERNEL[4702.078465] remove   /kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8347
SUBSYSTEM=cgroup

KERNEL[4702.078538] remove   /kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service)
SEQNUM=8348
SUBSYSTEM=cgroup

KERNEL[4702.078624] remove   /kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service)
SEQNUM=8349
SUBSYSTEM=cgroup

KERNEL[4702.078691] remove   /kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8350
SUBSYSTEM=cgroup

KERNEL[4702.078756] remove   /kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service)
SEQNUM=8351
SUBSYSTEM=cgroup

KERNEL[4702.078832] remove   /kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8352
SUBSYSTEM=cgroup

KERNEL[4702.078945] remove   /kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service)
SEQNUM=8353
SUBSYSTEM=cgroup

KERNEL[4702.079043] remove   /kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8354
SUBSYSTEM=cgroup

KERNEL[4702.079123] remove   /kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8355
SUBSYSTEM=cgroup

KERNEL[4702.079217] remove   /kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8356
SUBSYSTEM=cgroup

KERNEL[4702.079326] remove   /kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8357
SUBSYSTEM=cgroup

KERNEL[4702.079388] remove   /kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8358
SUBSYSTEM=cgroup

KERNEL[4702.079454] remove   /kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8359
SUBSYSTEM=cgroup

KERNEL[4702.079517] remove   /kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service)
SEQNUM=8360
SUBSYSTEM=cgroup

KERNEL[4702.079576] remove   /kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service)
SEQNUM=8361
SUBSYSTEM=cgroup

KERNEL[4702.079644] remove   /kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service)
SEQNUM=8362
SUBSYSTEM=cgroup

KERNEL[4702.079704] remove   /kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service)
SEQNUM=8363
SUBSYSTEM=cgroup

KERNEL[4702.079762] remove   /kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service)
SEQNUM=8364
SUBSYSTEM=cgroup

KERNEL[4702.079826] remove   /kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service)
SEQNUM=8365
SUBSYSTEM=cgroup

KERNEL[4702.079885] remove   /kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service)
SEQNUM=8366
SUBSYSTEM=cgroup

KERNEL[4702.079947] remove   /kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service)
SEQNUM=8367
SUBSYSTEM=cgroup

KERNEL[4702.080009] remove   /kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service)
SEQNUM=8368
SUBSYSTEM=cgroup

UDEV  [4702.080782] remove   /kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0001280/cgroup/UDPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8340
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702077946

UDEV  [4702.082016] remove   /kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0001024/cgroup/UNIX(1668:NetworkManager-dispatcher.service)
SEQNUM=8342
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702079676

UDEV  [4702.082714] remove   /kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/TCP/cgroup/TCP(1668:NetworkManager-dispatcher.service)
SEQNUM=8343
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702080266

UDEV  [4702.082886] remove   /kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/TCPv6/cgroup/TCPv6(1668:NetworkManager-dispatcher.service)
SEQNUM=8341
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702078874

UDEV  [4702.082950] remove   /kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/sock_inode_cache/cgroup/sock_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8345
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702081679

UDEV  [4702.083955] remove   /kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/shmem_inode_cache/cgroup/shmem_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8347
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702082492

UDEV  [4702.083981] remove   /kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/skbuff_head_cache/cgroup/skbuff_head_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8346
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702081826

UDEV  [4702.084006] remove   /kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000040/cgroup/pde_opener(1668:NetworkManager-dispatcher.service)
SEQNUM=8349
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702083446

UDEV  [4702.084030] remove   /kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/proc_inode_cache/cgroup/proc_inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8350
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702083546

UDEV  [4702.084053] remove   /kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000080/cgroup/task_delay_info(1668:NetworkManager-dispatcher.service)
SEQNUM=8348
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702082617

UDEV  [4702.084078] remove   /kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000256/cgroup/filp(1668:NetworkManager-dispatcher.service)
SEQNUM=8351
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702083631

UDEV  [4702.084099] remove   /kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/dentry/cgroup/dentry(1668:NetworkManager-dispatcher.service)
SEQNUM=8353
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702083793

UDEV  [4702.084124] remove   /kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/inode_cache/cgroup/inode_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8352
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702083667

UDEV  [4702.084289] remove   /kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000704/cgroup/files_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8356
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084000

UDEV  [4702.084317] remove   /kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000208/cgroup/vm_area_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8354
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702083823

UDEV  [4702.084490] remove   /kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/task_struct/cgroup/task_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8359
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084064

UDEV  [4702.084946] remove   /kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000064/cgroup/anon_vma_chain(1668:NetworkManager-dispatcher.service)
SEQNUM=8361
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084208

UDEV  [4702.084977] remove   /kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0001088/cgroup/signal_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8357
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084018

UDEV  [4702.085011] remove   /kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/mm_struct/cgroup/mm_struct(1668:NetworkManager-dispatcher.service)
SEQNUM=8355
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702083841

UDEV  [4702.085028] remove   /kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/sighand_cache/cgroup/sighand_cache(1668:NetworkManager-dispatcher.service)
SEQNUM=8358
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084034

UDEV  [4702.085041] remove   /kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/anon_vma/cgroup/anon_vma(1668:NetworkManager-dispatcher.service)
SEQNUM=8362
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084236

UDEV  [4702.085054] remove   /kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-1k/cgroup/kmalloc-1k(1668:NetworkManager-dispatcher.service)
SEQNUM=8365
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084434

UDEV  [4702.085140] remove   /kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000192/cgroup/cred_jar(1668:NetworkManager-dispatcher.service)
SEQNUM=8360
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084082

UDEV  [4702.085219] remove   /kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-4k/cgroup/kmalloc-4k(1668:NetworkManager-dispatcher.service)
SEQNUM=8364
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084417

UDEV  [4702.085345] remove   /kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000128/cgroup/pid(1668:NetworkManager-dispatcher.service)
SEQNUM=8363
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084253

UDEV  [4702.085399] remove   /kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-512/cgroup/kmalloc-512(1668:NetworkManager-dispatcher.service)
SEQNUM=8366
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084454

UDEV  [4702.085427] remove   /kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/:A-0000072/cgroup/eventpoll_pwq(1668:NetworkManager-dispatcher.service)
SEQNUM=8344
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702080894

UDEV  [4702.085446] remove   /kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-192/cgroup/kmalloc-192(1668:NetworkManager-dispatcher.service)
SEQNUM=8367
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084622

UDEV  [4702.085462] remove   /kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service) (cgroup)
ACTION=remove
DEVPATH=/kernel/slab/kmalloc-32/cgroup/kmalloc-32(1668:NetworkManager-dispatcher.service)
SEQNUM=8368
SUBSYSTEM=cgroup
USEC_INITIALIZED=4702084643

TX2 (not working properly)

$ udevadm monitor -e
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[4331.898341] add      /devices/3530000.xhci/usb1/1-3 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/102
DEVNUM=102
DEVPATH=/devices/3530000.xhci/usb1/1-3
DEVTYPE=usb_device
MAJOR=189
MINOR=101
PRODUCT=1546/1140/0
SEQNUM=5394
SUBSYSTEM=usb
TYPE=2/2/0

KERNEL[4331.903786] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
ACTION=add
DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
DEVTYPE=usb_interface
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=5395
SUBSYSTEM=usb
TYPE=2/2/0

UDEV  [4331.943341] add      /devices/3530000.xhci/usb1/1-3 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/102
DEVNUM=102
DEVPATH=/devices/3530000.xhci/usb1/1-3
DEVTYPE=usb_device
DRIVER=usb
ID_BUS=usb
ID_MM_UBLOX_PORT_READY_DELAY=20
ID_MODEL=MODEM-LTE-FLASHER
ID_MODEL_ENC=MODEM-LTE-FLASHER
ID_MODEL_ID=1140
ID_REVISION=0000
ID_SERIAL=u-blox_MODEM-LTE-FLASHER
ID_USB_INTERFACES=:020201:
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
MAJOR=189
MINOR=101
PRODUCT=1546/1140/0
SEQNUM=5394
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4331941189
net.ifnames=0

UDEV  [4331.947804] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
.MM_USBIFNUM=00
ACTION=add
DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
DEVTYPE=usb_interface
ID_MM_UBLOX_PORT_READY_DELAY=20
ID_USB_CLASS_FROM_DATABASE=Communications
ID_USB_SUBCLASS_FROM_DATABASE=Abstract (modem)
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=5395
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4331945583
net.ifnames=0

KERNEL[4335.540713] remove   /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
ACTION=remove
DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
DEVTYPE=usb_interface
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=5396
SUBSYSTEM=usb
TYPE=2/2/0

KERNEL[4335.541386] remove   /devices/3530000.xhci/usb1/1-3 (usb)
ACTION=remove
BUSNUM=001
DEVNAME=/dev/bus/usb/001/102
DEVNUM=102
DEVPATH=/devices/3530000.xhci/usb1/1-3
DEVTYPE=usb_device
MAJOR=189
MINOR=101
PRODUCT=1546/1140/0
SEQNUM=5397
SUBSYSTEM=usb
TYPE=2/2/0

UDEV  [4335.543532] remove   /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
ACTION=remove
DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
DEVTYPE=usb_interface
ID_MM_UBLOX_PORT_READY_DELAY=20
ID_USB_CLASS_FROM_DATABASE=Communications
ID_USB_SUBCLASS_FROM_DATABASE=Abstract (modem)
ID_VENDOR_FROM_DATABASE=U-Blox AG
INTERFACE=2/2/1
MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
PRODUCT=1546/1140/0
SEQNUM=5396
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4331945583
net.ifnames=0

UDEV  [4335.544712] remove   /devices/3530000.xhci/usb1/1-3 (usb)
ACTION=remove
BUSNUM=001
DEVNAME=/dev/bus/usb/001/102
DEVNUM=102
DEVPATH=/devices/3530000.xhci/usb1/1-3
DEVTYPE=usb_device
ID_BUS=usb
ID_MM_UBLOX_PORT_READY_DELAY=20
ID_MODEL=MODEM-LTE-FLASHER
ID_MODEL_ENC=MODEM-LTE-FLASHER
ID_MODEL_ID=1140
ID_REVISION=0000
ID_SERIAL=u-blox_MODEM-LTE-FLASHER
ID_USB_INTERFACES=:020201:
ID_VENDOR=u-blox
ID_VENDOR_ENC=u-blox
ID_VENDOR_FROM_DATABASE=U-Blox AG
ID_VENDOR_ID=1546
MAJOR=189
MINOR=101
PRODUCT=1546/1140/0
SEQNUM=5397
SUBSYSTEM=usb
TYPE=2/2/0
USEC_INITIALIZED=4331941189
net.ifnames=0

I can’t say based on the udev monitor. About all I can do is summarize some things to check or to know:

  • CDC_ACM can be integrated in the Image, or as a module.
    • If as a module, then failure will occur if the module is not somewhere in:
      /lib/modules/$(uname -r)/
      
    • If integrated with the kernel (an "=y" entry in "/proc/config.gz"), then modinfo and lsmod will not show the feature and the feature will still be present. Non-module features cannot be removed.
    • If there should be a module, and the module is failing to load or list, make sure the module is within the directory tree "/lib/modules/$(uname -r)/". If this fails, it means the kernel was built incorrectly (there is a misconfiguration of CONFIG_LOCALVERSION).
  • Once USB hot plug announces a device, it is up to drivers to take ownership of the device. All evidence is that USB is seeing the device and announcing correctly. USB's job is over with and succeeded even if a driver is not present.
  • If a driver takes ownership and creates a device special file as a result of loading, then udev will take note of exported device and can examine its own rules for further driver loads or device renaming.
  • When a udev rule runs, if there are no other dependencies, then a rename can occur (if that is what the rule does).
  • When a udev rule runs, there may be additional dependencies triggered. rndis is an example. udev might just rename a file, or it might load an additional driver which in turn creates another file. Networking (with rndis) is highly likely for USB networking. The load of the other driver might be expected to have already occurred, or the loading might be from the udev rule. You mentioned rndis earlier, be certain that your rndis requirements are met (and this may require additional user space software...the requirements are not necessarily kernel space...it could be either or both spaces). rndis is probably important to check on if continuation past the CDC_ACM fails.
  • Especially for wireless one requirement is often firmware. Firmware loads directly into the modem and changes the behavior of the hardware. Often a driver is incapable of binding to hardware with missing firmware since errors will occur.
  • User space or other content (such as udev) may directly or indirectly trigger loading of firmware. Failure of the firmware being present can prevent further progress in bringing up the mode.
  • I have no idea if your modem has a firmware requirement. Any wireless hardware sold in more than one region of the world has to either do it this way, or else manufacture different hardware for each region of the world.
  • Most firmware is a proprietary binary data file which is stored somewhere in "/lib/firmware/". The host operating system does not execute firmware, and so there is really no such thing as hardware-dependent firmware (the device has requirements, the host does not).
  • Since much of the firmware world is proprietary it is often necessary to download the firmware from the manufacturer's sight. Most firmware is not available by default on Linux. The cases where a desktop system loads this by default is usually because the installation software detected the need and downloaded the right firmware.
  • You will want to explore docs on your modem to see if firmware is mentioned. Other internet searches for the hardware and "linux firmware" may provide a lot of information. Exploring "/lib/firmware/" on the Linux PC the modem works with can also offer clues (though many times file naming and firmware are named after a chipset instead of a specific device...naming may be a bit obscure).
  • I mentioned a lot regarding firmware since this is still an unknown and is also a common need on wireless. You mentioned rndis, but I didn’t see any note that you validated rndis is installed. rndis would be a downstream requirement once a driver takes ownership…rndis would a resulting dependency in perhaps both kernel space and user space. I have no way to specifically say what your modem requires in those categories. If you can narrow down some of this it would help.

    NOTE: The CDC_ACM is a serial UART requirement. When the serial UART runs, then whatever it talks to will have another requirement. Like USB, CDC_ACM is just a data pipe connecting some destination device to the host. Having a udev rule rename specific CDC_ACM hardware in a custom way may be how the next dependency realizes this is not just a UART, but is instead a UART connected to a device the next driver understands.

    Thanks for the quick response. I went and edited my prior post since it got truncated by the forums.

    I’d actually argue that, for the TX2, the “usb” driver is not functioning correctly in some aspect:

    • If you look at lines 32 and 38 of the desktop udev/kernel events, you can see that an actual bind action occurs between the device and the "usb" driver.
    • This is not the case for the TX2 udev/kernel events, where no bind actions occur whatsoever.

    In the functioning desktop, it looks like “usb” binds to the device, and kicks off everything after that (e.g. cdc_acm, rndis, etc.). Since “usb” does not bind to the device on the TX2, everything seems to stop dead there. What are your thoughts on those discrepancies?

    W.r.t. rndis: it’s on there and loaded, but we don’t even get far enough to the point where rndis tries to bind.

    W.r.t. firmware, I’m not really sure if the modem has that requirement. I’ve been in constant contact with the manufacturer on this issue, and they state that it should be plug and play with vanilla linux (e.g. no additional drivers/mods required). But I can ask them about the firmware.

    USB is only responsible for announcing a device. USB itself does not bind to a device, USB only binds to the pipe talking to the device…if the hardware pipe had failed, then the USB metadata would have never been downloaded, and things like manufacturer ID would be unknown. Missing an ID would be a USB failure.

    Actual load failure would be that of the driver trying to bind to the device. USB has no control over whether the driver is actually compatible (and even if the driver is compatible, if there is still firmware in need of load, then the hardware is not yet compatible until the firmware loads). The question there is why the driver did not succeed in binding. Now if you are lucky enough to have the driver in the form of a module, then a manual insmod of the driver, and accompanying error messages, would add a clue as to what went wrong (monitor “dmesg --follow” while manually running "sudo insmod ").

    It makes sense that if the driver loads it triggers further dependency chain load, but no further dependencies load when the driver itself fails.

    The cdc_acm and rndis_host modules load just fine as indicated by dmesg… I set them up to load automatically at boot via /etc/modules_load.d/. I also verified that they are present in lsmod after boot.

    I’m confused about why, on the desktop, there is a bind event with driver=usb. I see other bind events:

    • Lines 300-310: bind event, driver=cdc_acm
    • Lines 244-254: bind event, driver=rndis_host

    These seem to indicate that the device is binding with drivers cdc_acm and rndis_host. So what is the significance of lines 32-38, which shows the bind event with driver=usb? This is why I assumed there is a driver named “usb” that is not binding for some reason my TX2.

    BTW, I really appreciate all of your help on this!

    Bind events are the drivers taking ownership of the device through the USB pipe. USB isn’t binding, the driver is…but the driver is using USB for the connectivity. Connectivity has not failed, driver binding has failed. Anything announcing a device’s IDs or other metadata is via the USB driver (lsusb would return with error if USB failed). The rest is up to another driver.

    I think where I’m getting lost is that the bind event in lines 31-44 specifically lists driver=usb.

    When cdc_acm binds to the device, the event shows up as a bind with driver=cdc_acm (lines 300-310).
    When rndis_host binds to the device, the event shows up as a bind with driver=rndis_host (lines 244-254).

    So I’m lost when I see the very first bind event in 31-44 that specifically lists driver=usb. If usb isn’t a driver, why is it being listed as the driver for the bind event? Is there another driver behind the curtain? If so, how do I tell what that driver is?

    Upon further inspection, it looks like this is not anything related to cdc_acm or rndis_host. If you look carefully at the udevadm monitor logs I posted, you will notice:

    • On the functioning computer, the module starts up in a flashing mode (productID 1140), and after 4 seconds, restarts itself. When it boots back up, its now running in its normal mode (product ID 1146), and cdc_acm, rndis_host, etc are able to bind and do their thing.
    • On the TX2, the module starts up in a flashing mode, and after 4 seconds, restarts itself. However, it just keeps booting back up in flashing mode, so it never even gets to a point where cdc_acm etc. can bind to it. The modem is just stuck in a loop booting into it's initial flashing mode until it gives up after a few cycles

    So the functioning desktop computer is obviously somehow instructing the modem to restart in normal mode on it’s next boot, while the TX2 is not. And this is what’s causing the problem.

    Can you clarify a little more on the firmware stuff you were talking about earlier? The modem is obviously already running its own firmware onboard… would the computer be uploading some other additional firmware or information to the module that would essentially instruct it to restart in normal mode instead of flashing mode?

    Whatever it may be, I know its not proprietary as the modem works with a completely unmodified install of Ubuntu 18.04.

    The communications goes through USB and there is a chain of events. An event binds a device to USB. When USB is up, an event binds to a driver for the specific device the USB talks to. On disconnect the specific device driver disconnects, followed by disconnecting from USB itself. In the case of trying to bind with a failure you will still see USB bind, but instead of the next step showing the specific device bind, the next step will to be to unbind again from USB. As long as that next step binds to the specific device driver USB itself won’t unbind. Failure to bind in the chain of binds will cause a reverse to unbind as cleanup.

    — Working Case —

    In the working system there are two binds for the two devices on a single cable (the “/sys/devices/” path can verify this…the debug statement excludes the “/sys” prefix). This is from lines 6 to 29. Now that two devices have been added there will be an attempt to bind a device to a driver, lines 31 to 44. USB owns these devices. This triggers udev as an event in the chain of events. udev has not added these devices, so now udev adds them, lines 46 to 86. Now that the devices are added udev must look at device details and find a driver. Assuming both devices use the same driver there can be a single bind. The information for drivers to look at will be from lines 90 to 112 (basically that whole block of information, but I left off the first and last lines because the driver being bound isn’t looking at that as identification of what the device is).

    After this the working device removes and unbinds for whatever reason. This is the part where you noticed that the device reboots itself…if firmware were being loaded, then this is what would happen…firmware load, then device reboot with the new firmware. Aspects of identifying the device can identify the need for firmware, and a rebooted device may identify differently if there is new firmware. Eventually you will see “ID_USB_PROTOCOL_FROM_DATABASE”, where identification looks up a protocol, and this is what really tells what kernel driver is needed.

    udev itself may do renaming operations, but this in turn depends on how the device identifies (plus udev rules).

    — Non-working Case —

    In the non-working case you see the same two initial adds where the kernel acknowledges the devices. The USB information is available, but the kernel step following this for bind is missing. Presumably this could be missing firmware upload. After this udev goes on and adds successfully (thus USB is not failing), but no further bind succeeds and everything cleans up in reverse. Presumably something in the identifying information is not handled.

    About the part which is not handled: Either the device needs some sort of change in identification via firmware, or else the component for binding was missing. The kernel and USB won’t treat the two any differently. A USB analyzer would probably tell you if there was a firmware upload. I have not researched this specific device so I don’t know if it really requires firmware, or if something else is missing.

    I will guess that what you noticed as the modem starting up and rebooting on the working system never occurs on the failing system. The reboot appears to me as what I would expect after the hardware updates itself and reboots to put that new update in place. This might not be the issue, but for example, some driver causing the reboot could also be missing, but the missing or failing software is not USB itself. USB causes the attempt to bind if it can find something to bind to. USB does not decide if the bind succeeded, some other condition defines that. We don’t know at this point if something is missing or if something is failed outside of USB.

    My gut feeling is to research what the prerequisites of this modem are.

    Thank you for the detailed explanation, that makes a lot more sense now. Ultimately, there is something going on during the modem’s first boot that makes it reboot and transition to normal mode. I have an open ticket with u-blox to figure out what needs to happen to make that transition.

    New update: Today I reset my TX2 back to Jetpack 3.3 to make sure the modem still works (and verify that it was not a hardware issue). Once I reverted back to 3.3, it worked just fine as expected.

    I ran udevadm monitor on Jetpack 3.3 while plugging the modem in, and interestingly enough, it doesn’t show any BIND events at all… must be particular to the kernel? So the logs we were comparing between the TX2 and the desktop were not even really comparable since bind events don’t show up at all on TX2. See udevadm monitor output from Jetpack 3.3 with working modem at bottom of post.

    I also noticed the following differences in dmesg during boot:

    In Jetpack 3.3, there are several usb/uart drivers that are built-in to the kernel:

    • cp210x
    • ftdi_sio
    • pl2303
    • option (technically not usb uart, but driver for gsm modems

    These are not built into Jetpack 4.2 kernel, but instead are loadable modules. I wasn’t loading them on 4.2 during testing, only cdc_acm. Do you think cdc_acm relies on one of those usb uart drivers to function? If it did, would modprobe cdc_acm load any dependencies automatically or no?

    monitor will print the received events for:
    UDEV - the event which udev sends out after rule processing
    KERNEL - the kernel uevent
    
    KERNEL[6897.196996] add      /devices/3530000.xhci/usb1/1-3 (usb)
    ACTION=add
    BUSNUM=001
    DEVNAME=/dev/bus/usb/001/004
    DEVNUM=004
    DEVPATH=/devices/3530000.xhci/usb1/1-3
    DEVTYPE=usb_device
    MAJOR=189
    MINOR=3
    PRODUCT=1546/1140/0
    SEQNUM=3046
    SUBSYSTEM=usb
    TYPE=2/2/0
    
    KERNEL[6897.205776] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
    DEVTYPE=usb_interface
    INTERFACE=2/2/1
    MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
    PRODUCT=1546/1140/0
    SEQNUM=3047
    SUBSYSTEM=usb
    TYPE=2/2/0
    
    UDEV  [6897.242309] add      /devices/3530000.xhci/usb1/1-3 (usb)
    ACTION=add
    BUSNUM=001
    DEVNAME=/dev/bus/usb/001/004
    DEVNUM=004
    DEVPATH=/devices/3530000.xhci/usb1/1-3
    DEVTYPE=usb_device
    DRIVER=usb
    ID_BUS=usb
    ID_MODEL=MODEM-LTE-FLASHER
    ID_MODEL_ENC=MODEM-LTE-FLASHER
    ID_MODEL_ID=1140
    ID_REVISION=0000
    ID_SERIAL=u-blox_MODEM-LTE-FLASHER
    ID_USB_INTERFACES=:020201:
    ID_VENDOR=u-blox
    ID_VENDOR_ENC=u-blox
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    ID_VENDOR_ID=1546
    MAJOR=189
    MINOR=3
    PRODUCT=1546/1140/0
    SEQNUM=3046
    SUBSYSTEM=usb
    TYPE=2/2/0
    USEC_INITIALIZED=6897241803
    net.ifnames=0
    
    UDEV  [6897.254532] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
    .MM_USBIFNUM=00
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
    DEVTYPE=usb_interface
    ID_USB_CLASS_FROM_DATABASE=Communications
    ID_USB_SUBCLASS_FROM_DATABASE=Abstract (modem)
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    INTERFACE=2/2/1
    MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
    PRODUCT=1546/1140/0
    SEQNUM=3047
    SUBSYSTEM=usb
    TYPE=2/2/0
    USEC_INITIALIZED=6897253808
    net.ifnames=0
    
    KERNEL[6900.853200] remove   /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
    ACTION=remove
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
    DEVTYPE=usb_interface
    INTERFACE=2/2/1
    MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
    PRODUCT=1546/1140/0
    SEQNUM=3048
    SUBSYSTEM=usb
    TYPE=2/2/0
    
    UDEV  [6900.859952] remove   /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
    ACTION=remove
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
    DEVTYPE=usb_interface
    ID_USB_CLASS_FROM_DATABASE=Communications
    ID_USB_SUBCLASS_FROM_DATABASE=Abstract (modem)
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    INTERFACE=2/2/1
    MODALIAS=usb:v1546p1140d0000dc02dsc02dp00ic02isc02ip01in00
    PRODUCT=1546/1140/0
    SEQNUM=3048
    SUBSYSTEM=usb
    TYPE=2/2/0
    USEC_INITIALIZED=6897253808
    net.ifnames=0
    
    KERNEL[6900.863128] remove   /devices/3530000.xhci/usb1/1-3 (usb)
    ACTION=remove
    BUSNUM=001
    DEVNAME=/dev/bus/usb/001/004
    DEVNUM=004
    DEVPATH=/devices/3530000.xhci/usb1/1-3
    DEVTYPE=usb_device
    MAJOR=189
    MINOR=3
    PRODUCT=1546/1140/0
    SEQNUM=3049
    SUBSYSTEM=usb
    TYPE=2/2/0
    
    UDEV  [6900.869641] remove   /devices/3530000.xhci/usb1/1-3 (usb)
    ACTION=remove
    BUSNUM=001
    DEVNAME=/dev/bus/usb/001/004
    DEVNUM=004
    DEVPATH=/devices/3530000.xhci/usb1/1-3
    DEVTYPE=usb_device
    ID_BUS=usb
    ID_MODEL=MODEM-LTE-FLASHER
    ID_MODEL_ENC=MODEM-LTE-FLASHER
    ID_MODEL_ID=1140
    ID_REVISION=0000
    ID_SERIAL=u-blox_MODEM-LTE-FLASHER
    ID_USB_INTERFACES=:020201:
    ID_VENDOR=u-blox
    ID_VENDOR_ENC=u-blox
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    ID_VENDOR_ID=1546
    MAJOR=189
    MINOR=3
    PRODUCT=1546/1140/0
    SEQNUM=3049
    SUBSYSTEM=usb
    TYPE=2/2/0
    USEC_INITIALIZED=6897241803
    net.ifnames=0
    
    KERNEL[6903.392811] add      /devices/3530000.xhci/usb1/1-3 (usb)
    ACTION=add
    BUSNUM=001
    DEVNAME=/dev/bus/usb/001/005
    DEVNUM=005
    DEVPATH=/devices/3530000.xhci/usb1/1-3
    DEVTYPE=usb_device
    MAJOR=189
    MINOR=4
    PRODUCT=1546/1146/100
    SEQNUM=3050
    SUBSYSTEM=usb
    TYPE=239/2/1
    
    KERNEL[6903.401423] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
    DEVTYPE=usb_interface
    INTERFACE=224/1/3
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01icE0isc01ip03in00
    PRODUCT=1546/1146/100
    SEQNUM=3051
    SUBSYSTEM=usb
    TYPE=239/2/1
    
    KERNEL[6903.403747] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2 (net)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2
    IFINDEX=11
    INTERFACE=usb2
    SEQNUM=3052
    SUBSYSTEM=net
    
    KERNEL[6903.403843] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/rx-0 (queues)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/rx-0
    SEQNUM=3053
    SUBSYSTEM=queues
    
    KERNEL[6903.404188] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/tx-0 (queues)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/tx-0
    SEQNUM=3054
    SUBSYSTEM=queues
    
    KERNEL[6903.416583] add      /devices/3530000.xhci/usb1/1-3/1-3:1.1 (usb)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.1
    DEVTYPE=usb_interface
    DRIVER=rndis_host
    INTERFACE=10/0/0
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in01
    PRODUCT=1546/1146/100
    SEQNUM=3055
    SUBSYSTEM=usb
    TYPE=239/2/1
    
    KERNEL[6903.417238] add      /devices/3530000.xhci/usb1/1-3/1-3:1.2 (usb)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.2
    DEVTYPE=usb_interface
    INTERFACE=2/2/1
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic02isc02ip01in02
    PRODUCT=1546/1146/100
    SEQNUM=3056
    SUBSYSTEM=usb
    TYPE=239/2/1
    
    KERNEL[6903.422953] add      /devices/3530000.xhci/usb1/1-3/1-3:1.2/tty/ttyACM0 (tty)
    ACTION=add
    DEVNAME=/dev/ttyACM0
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.2/tty/ttyACM0
    MAJOR=166
    MINOR=0
    SEQNUM=3057
    SUBSYSTEM=tty
    
    KERNEL[6903.423283] add      /devices/3530000.xhci/usb1/1-3/1-3:1.3 (usb)
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.3
    DEVTYPE=usb_interface
    DRIVER=cdc_acm
    INTERFACE=10/0/0
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in03
    PRODUCT=1546/1146/100
    SEQNUM=3058
    SUBSYSTEM=usb
    TYPE=239/2/1
    
    UDEV  [6903.444090] add      /devices/3530000.xhci/usb1/1-3 (usb)
    ACTION=add
    BUSNUM=001
    DEVNAME=/dev/bus/usb/001/005
    DEVNUM=005
    DEVPATH=/devices/3530000.xhci/usb1/1-3
    DEVTYPE=usb_device
    DRIVER=usb
    ID_BUS=usb
    ID_MODEL=MODEM-LTE
    ID_MODEL_ENC=MODEM-LTE
    ID_MODEL_ID=1146
    ID_REVISION=0100
    ID_SERIAL=u-blox_MODEM-LTE_000000000100
    ID_SERIAL_SHORT=000000000100
    ID_USB_INTERFACES=:e00103:0a0000:020201:
    ID_VENDOR=u-blox
    ID_VENDOR_ENC=u-blox
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    ID_VENDOR_ID=1546
    MAJOR=189
    MINOR=4
    PRODUCT=1546/1146/100
    SEQNUM=3050
    SUBSYSTEM=usb
    TYPE=239/2/1
    USEC_INITIALIZED=6903443769
    net.ifnames=0
    
    UDEV  [6903.451537] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0 (usb)
    .MM_USBIFNUM=00
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0
    DEVTYPE=usb_interface
    DRIVER=rndis_host
    ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
    ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    INTERFACE=224/1/3
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01icE0isc01ip03in00
    PRODUCT=1546/1146/100
    SEQNUM=3051
    SUBSYSTEM=usb
    TYPE=239/2/1
    USEC_INITIALIZED=6903451119
    net.ifnames=0
    
    UDEV  [6903.451999] add      /devices/3530000.xhci/usb1/1-3/1-3:1.1 (usb)
    .MM_USBIFNUM=01
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.1
    DEVTYPE=usb_interface
    DRIVER=rndis_host
    ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
    ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    INTERFACE=10/0/0
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in01
    PRODUCT=1546/1146/100
    SEQNUM=3055
    SUBSYSTEM=usb
    TYPE=239/2/1
    USEC_INITIALIZED=6903451650
    net.ifnames=0
    
    UDEV  [6903.460464] add      /devices/3530000.xhci/usb1/1-3/1-3:1.2 (usb)
    .MM_USBIFNUM=02
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.2
    DEVTYPE=usb_interface
    DRIVER=cdc_acm
    ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
    ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    INTERFACE=2/2/1
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic02isc02ip01in02
    PRODUCT=1546/1146/100
    SEQNUM=3056
    SUBSYSTEM=usb
    TYPE=239/2/1
    USEC_INITIALIZED=6903460047
    net.ifnames=0
    
    UDEV  [6903.465484] add      /devices/3530000.xhci/usb1/1-3/1-3:1.3 (usb)
    .MM_USBIFNUM=03
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.3
    DEVTYPE=usb_interface
    DRIVER=cdc_acm
    ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
    ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    INTERFACE=10/0/0
    MODALIAS=usb:v1546p1146d0100dcEFdsc02dp01ic0Aisc00ip00in03
    PRODUCT=1546/1146/100
    SEQNUM=3058
    SUBSYSTEM=usb
    TYPE=239/2/1
    USEC_INITIALIZED=6903465131
    net.ifnames=0
    
    UDEV  [6903.465971] add      /devices/3530000.xhci/usb1/1-3/1-3:1.2/tty/ttyACM0 (tty)
    .MM_USBIFNUM=02
    ACTION=add
    DEVLINKS=/dev/serial/by-path/platform-3530000.xhci-usb-0:3:1.2 /dev/serial/by-id/usb-u-blox_MODEM-LTE_000000000100-if02
    DEVNAME=/dev/ttyACM0
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.2/tty/ttyACM0
    ID_BUS=usb
    ID_MM_CANDIDATE=1
    ID_MODEL=MODEM-LTE
    ID_MODEL_ENC=MODEM-LTE
    ID_MODEL_ID=1146
    ID_PATH=platform-3530000.xhci-usb-0:3:1.2
    ID_PATH_TAG=platform-3530000_xhci-usb-0_3_1_2
    ID_REVISION=0100
    ID_SERIAL=u-blox_MODEM-LTE_000000000100
    ID_SERIAL_SHORT=000000000100
    ID_TYPE=generic
    ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
    ID_USB_DRIVER=cdc_acm
    ID_USB_INTERFACES=:e00103:0a0000:020201:
    ID_USB_INTERFACE_NUM=02
    ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
    ID_VENDOR=u-blox
    ID_VENDOR_ENC=u-blox
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    ID_VENDOR_ID=1546
    MAJOR=166
    MINOR=0
    SEQNUM=3057
    SUBSYSTEM=tty
    TAGS=:systemd:
    USEC_INITIALIZED=6903465708
    net.ifnames=0
    
    UDEV  [6903.486899] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2 (net)
    .MM_USBIFNUM=00
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2
    ID_BUS=usb
    ID_MM_CANDIDATE=1
    ID_MODEL=MODEM-LTE
    ID_MODEL_ENC=MODEM-LTE
    ID_MODEL_ID=1146
    ID_NET_DRIVER=rndis_host
    ID_NET_LINK_FILE=/lib/systemd/network/99-default.link
    ID_NET_NAME_MAC=enxda9dfbb39083
    ID_PATH=platform-3530000.xhci-usb-0:3:1.0
    ID_PATH_TAG=platform-3530000_xhci-usb-0_3_1_0
    ID_REVISION=0100
    ID_SERIAL=u-blox_MODEM-LTE_000000000100
    ID_SERIAL_SHORT=000000000100
    ID_TYPE=generic
    ID_USB_CLASS_FROM_DATABASE=Miscellaneous Device
    ID_USB_DRIVER=rndis_host
    ID_USB_INTERFACES=:e00103:0a0000:020201:
    ID_USB_INTERFACE_NUM=00
    ID_USB_PROTOCOL_FROM_DATABASE=Interface Association
    ID_VENDOR=u-blox
    ID_VENDOR_ENC=u-blox
    ID_VENDOR_FROM_DATABASE=U-Blox AG
    ID_VENDOR_ID=1546
    IFINDEX=11
    INTERFACE=usb2
    SEQNUM=3052
    SUBSYSTEM=net
    SYSTEMD_ALIAS=/sys/subsystem/net/devices/usb2
    TAGS=:systemd:
    USEC_INITIALIZED=6903460265
    net.ifnames=0
    
    UDEV  [6903.496581] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/tx-0 (queues)
    .MM_USBIFNUM=00
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/tx-0
    SEQNUM=3054
    SUBSYSTEM=queues
    USEC_INITIALIZED=6903493272
    net.ifnames=0
    
    UDEV  [6903.499606] add      /devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/rx-0 (queues)
    .MM_USBIFNUM=00
    ACTION=add
    DEVPATH=/devices/3530000.xhci/usb1/1-3/1-3:1.0/net/usb2/queues/rx-0
    SEQNUM=3053
    SUBSYSTEM=queues
    USEC_INITIALIZED=6903499445
    net.ifnames=0
    

    So I reflashed 4.2.1 and loaded all of the those modules I mentioned in the prior post… no luck.

    I’m starting to reach my wits end here… I’ve been trying to fix this for almost 2 weeks now with no progress. NVIDIA hasn’t provided any insight what-so-ever, ConnectTech literally told me to figure it out myself, and u-blox just threw their hands up and said I don’t know. It’s very frustrating because I bought products from 3 different companies, and none of them are willing and/or able to help.

    I’m at a loss for what to try next. I can’t isolate the problem to either Jetpack or ConnectTech’s BSP, so I don’t know which tree to bark up.

    I’m still waiting to hear back from u-blox on what makes the modem transition from flashing mode to regular mode, but they haven’t answered in a few days so I think they’ve given up.

    Any suggestions on what else I can try?

    Keep in mind that if firmware is being loaded (and I don’t know that it is, but I suspect this is the case), then the firmware version will essentially change which hardware you have (firmware loads directly into the device and essentially creates changes which any access API must adhere to). Quite possibly either there is a firmware load under JetPack3.3, and in the later release, either the firmware is missing or is a different version. Conversely, if the API used to access the hardware has changed (which means either kernel drivers or user space software), then this too could result in a mismatch even if the firmware changed (e.g., if a driver version incremented in the newer kernel, but the hardware still expects the older API).

    It isn’t likely that the carrier board itself will change things (USB is hot plug and won’t depend on a device tree the way non-hot-plug hardware will) so long as basic USB function works. Most everything depends on finding out what the u-blox prerequisites are.

    In terms of the UARTs, if the particular UART in the modem, and the other UARTs don’t exist, then the others won’t matter. On the other hand, there could be a chain of requirements, e.g., as mentioned before, once the UART driver is loaded it may be necessary for a udev component to recognize the device and rename it…which can’t happen if software required to recognize the device as “special case” doesn’t exist.

    Since your JetPack3.3 works, you might examine the directory tree content in “/lib/firmware/” and see if anything has a name which might be related. Double check if firmware is required from the modem manufacturer. Btw, it could be as simple (if firmware is there but not loaded) as some user space firmware loader program. Basically I think you’re stuck until the manufacturer can answer if specific firmware (or other) dependencies exist. Things are working up to a point, but the chain of requirements has something missing.