Re: [Gumstix-users] Missing webcam support from dizzy

[Ash C. <ash...@gm...>]

Hey Tom,

Not intentional! Thanks for posting so we could fix the omission.

I've pushed kernel support [1] and made some handy camera utilities
available for 'smart install' [2]. I had three webcams on hand: two
spitting out JPEG-encoded video and one producing raw YUYV (aka YUY2)
and MPEG. To check the supported output formats:
$ v4l2-ctl --list-formats

To grab a picture, I tried
$ smart install cheese
$ cheese
<click to take a photo>

I tried streaming directly from the JPEG cameras.  Note that my host
ip is 192.168.1.132 and my webcam came up on /dev/video0.
<on gumstix>
$ gst-launch v4l2src device=/dev/video0 ! 'image/jpeg' ! rtpjpegpay !
udpsink host=192.168.1.132 port=5000
<on host>
$ gst-launch udpsrc port=5000 ! 'application/x-rtp,
encoding-name=JPEG,payload=26' ! rtpjpegdepay ! jpegdec !
autovideosink

I fired off a build [3] so, all proceeding well, a pre-built image
will show up in the 'All Software' section [4] (~8 hours). Note, these
fixes show up on the 'dev' branch [5] and will filter back to 'dizzy'
next time we sync (every couple weeks typically).

Let me know if this resolves the issue for you.

Cheers,
--Ash
[1] https://github.com/gumstix/meta-gumstix/commit/ed449141352ed79f64a1dc62caa6191556e333a3
[2] https://github.com/gumstix/meta-gumstix-extras/commit/64f6cd597072508dfc765a123cd6bcc11b988f72
[3] https://buildbot.gumstix.com/builders/yocto-overo-dev/builds/116
[4] https://catalina.gumstix.com/binaries/?sort=-last_updated
[5] https://github.com/gumstix/yocto-manifest/tree/dev

On Thu, Apr 30, 2015 at 9:42 PM, Tom Mises <tom...@gm...> wrote:
> It seems that Dizzy is missing webcam support. I do not see the
> uvcvideo module in the images, and as far I can tell, also defconfig
> does not have the relevant configuration.
>
> Is this intentional? I imagine lots of users require UVC support, so I
> was surprised to see this gone.
>
> Tom
>
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