topic Re: i.mx8m opencv & ffmpeg open camera issue in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/i-mx8m-opencv-ffmpeg-open-camera-issue/m-p/871696#M132467 <HTML><HEAD></HEAD><BODY><P>Hello Alex,</P><P></P><P>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.&nbsp; The usb device is wrong.</P></BODY></HTML> Mon, 08 Apr 2019 13:40:33 GMT Bio_TICFSL 2019-04-08T13:40:33Z i.mx8m opencv & ffmpeg open camera issue https://community.nxp.com/t5/i-MX-Processors/i-mx8m-opencv-ffmpeg-open-camera-issue/m-p/871695#M132466 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>When I use opencv or ffmpeg&nbsp; to open /dev/video1 (camera yuv422 format)</P><P>I also find the error:</P><P></P><P>[ 16.663811] usb 2-1: WARN: Max Exit Latency too large<BR />[ 16.668905] usb 2-1: Could not enable U1 link state, xHCI error -22.<BR />[ 16.675867] usb 2-1: WARN: Max Exit Latency too large<BR />[ 16.680960] usb 2-1: Could not enable U2 link state, xHCI error -22.</P><P></P><P>PS:&nbsp;&nbsp; usb3.0 Camera,&nbsp; 640x480 100fps yuv422 format</P><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; yocto:&nbsp;&nbsp;&nbsp; 4.9.88_2.0.0_ga</P><P></P><P></P><P>The system is normally use and display.</P><P>Anyone can help me?</P></BODY></HTML> Wed, 20 Mar 2019 03:28:39 GMT https://community.nxp.com/t5/i-MX-Processors/i-mx8m-opencv-ffmpeg-open-camera-issue/m-p/871695#M132466 1444361620 2019-03-20T03:28:39Z Re: i.mx8m opencv & ffmpeg open camera issue https://community.nxp.com/t5/i-MX-Processors/i-mx8m-opencv-ffmpeg-open-camera-issue/m-p/871696#M132467 <HTML><HEAD></HEAD><BODY><P>Hello Alex,</P><P></P><P>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.&nbsp; The usb device is wrong.</P></BODY></HTML> Mon, 08 Apr 2019 13:40:33 GMT https://community.nxp.com/t5/i-MX-Processors/i-mx8m-opencv-ffmpeg-open-camera-issue/m-p/871696#M132467 Bio_TICFSL 2019-04-08T13:40:33Z