Overlay_usb_35.3.1 details

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin NX
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Hi, I recently read about the UART fix with overlay_usb_35.3.1.tbz2.
Could you please explain which problem this address? In which scenarios/use case?

Is it possible to integrate it in my system Image without losing my current Image? Could you suggest the correct flash command?
Usually I flash with:

sudo ADDITIONAL_DTB_OVERLAY_OPT=“BootOrderNvme.dtbo” ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 -c tools/kernel_flash/flash_l4t_external.xml -p “-c bootloader/t186ref/cfg/flash_t234_qspi.xml” --showlogs --network usb0 p3509-a02+p3767-0000 internal

but I’m afraid I will lose all my libs and data currently installed.
I’m using a Orin NX 16GB with a Seeedstudio carrier board.

Thank you!

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This overlay just updates the xusb firmware.
The usecase is usb-uart cable connection has some problem on the usb side.

I don’t know what issue you faced there, but if there is no usb issue on your side then you don’t really need to upgrade this.

1 Like
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I actually face a problem interfacing a Intel T265 correctly at boot. It’s a known problem that may be related to how the driver initially enumerates the camera.
I’d like to test if anything changes with the overlay. Could you help with the flashing procedure without losing all my work on the Orin?

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@WayneWWW

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Hi @WayneWWW
Along with the flash commands I asked before, could you also tell me how to diagnose if the overlay has been applied correctly?

I reflashed everything (J5.1.1) overwriting xusb_sil_rel_fw and xusb_t234_prod.bin in my Linux_for_Tegra/bootloader. Is there any dmesg entry or command I can use to verify that the OS is using the fixed xusb? Maybe a driver version somwhere…

Thank you!

1 Like
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Hi,

There is a partition called A_xusb-fw that you can flash it.

And if you flash it successfully, you can see the firmware version in the dmesg got updated.

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Hi @WayneWWW
is there any guide about flashing that partition only?
Is the overlay included in Jetpack 5.1.2?

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The overlay is already included in jp5.1.2. If you upgrade, then no need to add the overlay anymore.

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is there a command for flashing that partition only? That would help for units that has currenctly 5.1.1. Tnks

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