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i.mx8m opencv & ffmpeg open camera issue

Question asked by alex lin on Mar 19, 2019
Latest reply on Apr 8, 2019 by Bio_TICFSL

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?

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