I connect the Easier CAP(STK1160+GM7113) with the analog cameras, in tk1 i can identify the USB ID is 05e1:0408, but in /dev i can not find the video file, when i input cheese, it is said No device found, i tried some method, but failed.

If you look at “dmesg | tail” prior to attaching the USB device, and then again after connecting the USB device, you should find log messages regarding the device detection handling. What shows up on dmesg with device connect?

Also, on your Jetson, what is the output of this with the device connected:

gunzip < /proc/config.gz | grep 'V4'

Ok, thank you for your help.