gst-launch v4l2src num-buffers=90 device=/dev/video9 ! 'image/jpeg,width=320,height=240,framerate=30/1' ! jpegdec ! ffmpegcolorspace ! tidisplaysink2

Setting pipeline to PAUSED ...
[ 1488.911254] uvcvideo: Non-zero status (-71) in video completion handler.
[ 1488.918395] uvcvideo: Non-zero status (-71) in video completion handler.
[ 1488.925598] uvcvideo: Non-zero status (-71) in video completion handler.
[ 1488.932708] uvcvideo: Non-zero status (-71) in video completion handler.
[ 1488.939849] uvcvideo: Non-zero status (-71) in video completion handler.
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed trying to get video frames from device '/dev/video9'.
Additional debug info:
gstv4l2bufferpool.c(573): gst_v4l2_buffer_pool_dqbuf (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
The buffer type is not supported, or the index is out of bounds, or no buffers have been allocated yet, or the userptr or length are invalid. device /dev/video9
Execution ended after 2319336 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...