Product image created boots up, but usb detection failed

Hi Team,

Following are the changes made :

  1. added blacklist r8168, blacklist btusb, blacklist mttcan in the /etc/modprobe.d/blacklist.conf → to disable network driver, bluetooth and can interface respectively.
  2. sudo systemctl disable bluetooth → to disable the bluetooth service
  3. sudo apt purge --remove chromium-browser -y
    sudo apt autoremove && sudo apt autoclean -y → to uninstall chromium-browser and cleanup
    after this the image is cloned using the system.img.raw and the same rootfs is loaded in the SDK; this sdk is flashed on the Orin Nano.
    Device boots up fine and then, sudo ./tools/backup_restore/l4t_backup_restore.sh -e nvme0n1 -b jetson-orin-nano-devkit command is used to flash on the Custom Orin Nano device and the same is backedup for the production image to share the image alone.
    Production image mentioned above is booting up fine and disables network,bluetooth and chromium browser. But ends up in the usb detection issue when connected with the PC to communicate via the Test App.

Any directions to fix this issue? as we are looking for the Production image to be finalised.

Thanks,
Satya

Just to clarify. I don’t think any of the changes you did above has anything to do with with usb detection.

Also, even backup restore script seems not related to it. What I feel here is this is just a common mistake that you didn’t configure anything related to USB in the device tree to match your board.

If that really didn’t happen, please follow the document to do the configuration.

When inserting usb ch340, it detects dev/ttyACM port but not dev/ttyUSB. Is there any other way to fix it?

Is your issue related to original one? Are you colleagues?

I am the original one.
I am currently working on this task.

I assume that the changes made by me are no way related to the USB blockage. But please suggest me to debug the issue.
Also is there a way to reduce the Production image size, currently it is 21GB.

We only check one issue in one topic. For the usb issue, please read this documentation and modify device tree to match your hardware board.

https://docs.nvidia.com/jetson/archives/r36.4.3/DeveloperGuide/HR/JetsonModuleAdaptationAndBringUp/JetsonAgxOrinSeries.html?highlight=universal#porting-the-universal-serial-bus

Please be aware that some knowledg for usb hardware might be needed. Thus, please discuss with your hardware engineer too.

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