Hi Jack, On 06/15/2016 03:43 AM, Jack Mitchell wrote: > <snip> > Trying to use a user pointer rather than mmap also fails and causes a kernel splat. > Hmm, I've tested userptr with the mem2mem driver, but maybe never with video capture. I tried "v4l2-ctl -d/dev/video0 --stream-user=8" but that returns "VIDIOC_QBUF: failed: Invalid argument", haven't tracked down why (could be a bug in v4l2-ctl). Can you share the splat? > Apart from that and a few v4l2-compliance tests failing which you already mentioned, it seems to work OK. I'll try and do some more testing and see if I can come back with some more feedback. Thanks! Steve -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html