Built-in kernel does not come with USB Video support and when using sideloaded
uvcvideo.ko the camera works very bad (image is distorted, the device often crash). I can barely get even single 160x120 frames.
[video4linux2,v4l2 @ 0xa57320] The v4l2 frame is 32712 bytes, but 38400 bytes are expected (the bigger frame size, the sooner).
dmesg says something like
[ 1610.497185] [7168.0, ffmpeg] cma: dma_alloc_from_contiguous(cma e44c14c0, count 10, align 4).
I tried various
quirks parameters for the
uvcvideo.ko module, but nothing helps.
How do I make use of external USB camera on my device? Are there any patches/hackes available?