USB camera does not recognize after updating Jetpack 4.2 to TX2.

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi

USB camera does not recognize after updating Jetpack 4.2 to TX2.

[ 52.455097] usb 1-2.1: new high-speed USB device number 6 using tegra-xusb
[ 52.503987] usb 1-2.1: New USB device found, idVendor=1e4e, idProduct=0102
[ 52.504041] usb 1-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 52.504059] usb 1-2.1: Product: USB2.0 Camera
[ 52.504071] usb 1-2.1: Manufacturer: Etron Technology, Inc.
[ 52.513506] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1e4e:0102)
[ 52.515341] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 52.516236] uvcvideo 1-2.1:1.0: Entity type for entity Extension 4 was not initialized!
[ 52.524312] uvcvideo 1-2.1:1.0: Entity type for entity Processing 3 was not initialized!
[ 52.532468] uvcvideo 1-2.1:1.0: Entity type for entity Camera 1 was not initialized!

In Jetpack 3.2, it was recognized normally.

[ 26.621665] usb 1-2.1: new high-speed USB device number 4 using xhci-tegra
[ 26.739616] usb 1-2.1: New USB device found, idVendor=1e4e, idProduct=0102
[ 26.739626] usb 1-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 26.739631] usb 1-2.1: Product: USB2.0 Camera
[ 26.739636] usb 1-2.1: Manufacturer: Etron Technology, Inc.
[ 26.802339] uvcvideo: Found UVC 1.00 device USB2.0 Camera (1e4e:0102)
[ 26.804265] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround.
[ 26.805393] input: USB2.0 Camera as /devices/3530000.xhci/usb1/1-2/1-2.1/1-2.1:1.0/input/input11
[ 26.806279] usbcore: registered new interface driver uvcvideo
[ 26.806286] USB Video Class driver (1.1.1)

Tested with TX2 EvKit.

Thank you for your help.

2

It must be the UVC driver cause the problem. J4.2 is update the kernel to 4.9 the UVC driver may have regression. Could you have check with vendor if any firmware update to support new kernel. Otherwise may need to figure what the UVC change from kernel 4.4 to kernel 4.9 to revert it.

3

Thank you for quick response.

Is your opinion of a kernel 4.9 uvc driver issue?
kernel4.9 is the most common kernel.
But can there be such a problem?

4

I think it’s special device problem not all UVC device have this problem.
Could you check if any others device have the same problem.