i.mx8m opencv & ffmpeg open camera issue

[1444361620]

Hello,

When I use opencv or ffmpeg  to open /dev/video1 (camera yuv422 format)

I also find the error:

[ 16.663811] usb 2-1: WARN: Max Exit Latency too large
[ 16.668905] usb 2-1: Could not enable U1 link state, xHCI error -22.
[ 16.675867] usb 2-1: WARN: Max Exit Latency too large
[ 16.680960] usb 2-1: Could not enable U2 link state, xHCI error -22.

PS:   usb3.0 Camera,  640x480 100fps yuv422 format

         yocto:    4.9.88_2.0.0_ga

The system is normally use and display.

Anyone can help me?

[Bio_TICFSL]

Hello Alex,

You can use the ffmpeg and opencv with i.MX8 but you have an issue with your usb, try to see if this does not appear in a PC.  The usb device is wrong.