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Subject: Re: [PATCH 00/38] i.MX5/6 Video Capture
To: Jack Mitchell <ml@embed.me.uk>,
	Steve Longerbeam <slongerbeam@gmail.com>,
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From: Steve Longerbeam <steve_longerbeam@mentor.com>
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Date: Wed, 15 Jun 2016 18:37:20 -0700
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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