Hi snarky,DaneLLL，
When I use the original kernel of Linux_for_Tegra/ the USB camera is ok.I download the 28.2.1 kernel source,the config is tegra18_defconfig I changed nothing.
USB Video Class,
<*>UVC input events device support.
Am I missing something?Can you give me some guidance?Thank you.
This is the original kernel:
[ 29.148929] xhci-tegra 3530000.xhci: Firmware timestamp: 2017-12-07 10:50:08 UTC, Version: 55.09 release
[ 29.162264] xhci-tegra 3530000.xhci: exiting ELPG done
[ 29.380594] usb 1-2: new high-speed USB device number 2 using xhci-tegra
[ 29.598280] usb 1-2: New USB device found, idVendor=0ac8, idProduct=3313
[ 29.605122] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 29.612663] usb 1-2: Product: Sirius USB2.0 Camera
[ 29.617629] usb 1-2: Manufacturer: Vimicro Corp.
[ 29.624759] xhci-tegra 3530000.xhci: tegra_xhci_mbox_work mailbox command 6
[ 29.656986] tegra-snd-t186ref-mobile-rt565x sound: ASoC: CODEC DAI tlv320aic3x-hifi not registered
[ 29.666099] tegra-snd-t186ref-mobile-rt565x sound: snd_soc_register_card failed (-517)
[ 29.736993] uvcvideo: Found UVC 1.00 device Sirius USB2.0 Camera (0ac8:3313)
[ 29.748904] tegra-snd-t186ref-mobile-rt565x sound: ASoC: CODEC DAI tlv320aic3x-hifi not registered
[ 29.749334] input: Sirius USB2.0 Camera as /devices/3530000.xhci/usb1/1-2/1-2:1.0/input/input3
[ 29.749605] usbcore: registered new interface driver uvcvideo
[ 29.749606] USB Video Class driver (1.1.1)
[ 29.776453] tegra-snd-t186ref-mobile-rt565x sound: snd_soc_register_card failed (-517)
[ 29.788747] tegra-snd-t186ref-mobile-rt565x sound: ASoC: CODEC DAI tlv320aic3x-hifi not registered
[ 29.797712] tegra-snd-t186ref-mobile-rt565x sound: snd_soc_register_card failed (-517)
[ 30.807830] xhci-tegra 3530000.xhci: tegra_xhci_mbox_work mailbox command 5
[ 30.815022] xhci-tegra 3530000.xhci: tegra_xhci_mbox_work ignore firmware MBOX_CMD_DEC_SSPI_CLOCK request
[ 32.800869] xhci-tegra 3530000.xhci: entering ELPG
[ 32.810019] xhci-tegra 3530000.xhci: entering ELPG done
The compiled kernel:
[ 39.450298] xhci-tegra 3530000.xhci: tegra_xhci_mbox_work mailbox command 6
[ 39.584406] xhci-tegra 3530000.xhci: entering ELPG
[ 39.592933] xhci-tegra 3530000.xhci: entering ELPG done
[ 40.654613] xhci-tegra 3530000.xhci: exiting ELPG
[ 40.684421] xhci-tegra 3530000.xhci: Firmware timestamp: 2017-12-07 10:50:08 UTC, Version: 55.09 release
[ 40.697795] xhci-tegra 3530000.xhci: exiting ELPG done
[ 40.916118] usb 1-2: new high-speed USB device number 3 using xhci-tegra
[ 41.133624] usb 1-2: New USB device found, idVendor=0ac8, idProduct=3313
[ 41.140482] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 41.147780] usb 1-2: Product: Sirius USB2.0 Camera
[ 41.152874] usb 1-2: Manufacturer: Vimicro Corp.
[ 41.159874] xhci-tegra 3530000.xhci: tegra_xhci_mbox_work mailbox command 6
[ 41.188736] tegra-snd-t186ref-mobile-rt565x sound: ASoC: CODEC DAI tlv320aic3x-hifi not registered
[ 41.197791] tegra-snd-t186ref-mobile-rt565x sound: snd_soc_register_card failed (-517)
[ 42.343344] xhci-tegra 3530000.xhci: tegra_xhci_mbox_work mailbox command 5
[ 42.350569] xhci-tegra 3530000.xhci: tegra_xhci_mbox_work ignore firmware MBOX_CMD_DEC_SSPI_CLOCK request