I want to change the driver in tx2 driver/i2c, use the command make O=$TEGRA_KERNEL_OUT modules to compile and output the following information?
make[1]: Entering directory 'source/kernel-out/kernel'
CHK include/config/kernel.release
GEN ./Makefile
CHK include/generated/uapi/linux/version.h
Using sources/kernel/kernel-4.4 as source for kernel
CHK include/generated/utsrelease.h
make[2]: ‘include/generated/mach-types.h’ is up to date.
CHK include/generated/timeconst.h
CHK include/generated/bounds.h
CHK include/generated/asm-offsets.h
CALL sources/kernel/kernel-4.4/scripts/checksyscalls.sh
DTC drivers/misc/mods/mods.dtb
DTB drivers/misc/mods/mods.dtb.S
AS [M] drivers/misc/mods/mods.dtb.o
LD [M] drivers/misc/mods/mods.o
rm drivers/misc/mods/mods.dtb drivers/misc/mods/mods.dtb.S
Building modules, stage 2.
MODPOST 143 modules
WARNING: could not open drivers/misc/mods/mods.dtb.S: No such file or directory
LD [M] drivers/misc/mods/mods.ko
make[1]: Leaving directory ‘kernel-out/kernel’
Did my driver compile successfully? If successful, how should I apply it to the target board? Overwrite /lib/module? I tried it, but it didn’t work? Can someone help me this newbie?
Yes, I checked step 7 and packaged the driver files, but it didn’t work either。
Did you flash the device with recreate the system image.
sudo ./flash.sh jetson-xxx mmcblk0p1
When I use sudo ./flash.sh jetson-xxx mmcblk0p1, the system prompts “The system is running in low graphics mode” and asks for root privileges.
I can only temporarily use the previously copied image file and update the kernel and /lib/module/ directory
Did you export the kernel sub version by below command when build the kernel?
$ export LOCALVERSION=-tegra
correct. How can I fix “The system is runing in low-graphics mode”?
Do I need to download and replace with a new file system？
Hi,
low graphic mode is mostly caused by
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Incompatible file system
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Wrong nvgpu driver.
Just ask you one question: How many modification have you done to your system? I meant compared with the default jetpack release.
The downloaded default file system then copies the /lib/module/4.4.38-xx directory。
Hi,
Could you make sure the kernel module you built is using the same release version as your system?
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Where do you get the kernel source? Which version is that?
-
Which release is your jetpack version?
Just need to match (1) and (2).
kernel source version is 4.4 and JetPack-L4T-3.3-linux-x64_b39.run
Hi,
I think this may lead to a mistake… let me confirm again.
Where do you download the kernel source? Which link ? or through script?
Obtained from the source_rsync.sh script in jetpack…source_sync.sh.txt (9.1 KB)
Ok. Then the source is not the problem.
Could you share the result of “lsmod” on your device?
Wait a minute, I need to re-flash, thank you. I am thinking, if I re-download Tegra_Linux_Sample-Root-Filesystem_R28.2.1_aarch64.tbz2 and unzip it to Linux_for_Tegra, and then execute 4,5,6,7 in the link to see if it is normal
Yes, It is also worth trying.