i.mx8m opencv & ffmpeg open camera issue

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i.mx8m opencv & ffmpeg open camera issue

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1444361620
Contributor II

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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1 Reply

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Bio_TICFSL
NXP TechSupport
NXP TechSupport

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.

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