[GEM-dev] uvc webcam (eee pc 900 built in) with pix_video?

[ben at ekran.org]

Thanks Johannes.

I tried a straight:

svn update && svn revert . && aclocal && autoconf && ./configure && make

same issue.

I've attached the webcam lsusb -v info, maybe the 901 has a different camera?

I'm linking with libv4l-0 0.5.7-1~intrepid1

Let me know if you have any ideas, otherwise I'll leave this off the demo
list.

Thanks all.
.b.

> Ivica Ico Bukvic wrote:
>
>> Gem. IIRC when I was inquiring about this the last time I think the
>> reply
>> was that currently v4l2 is not supported well under Gem (although please
>> take this with a boulder of salt as this has been a while ago).
>
>
> this has changed with the advent of libv4l (which is now in debian)
>
> at least here on my eepc 901 the camera works out of the box with Gem
> (no special configure tweaks needed)
>
>
>>> I'm working with an svn copy of GEM updated yesterday. I'm configuring
>>> with:
>>>
>>> ./configure --prefix=/usr --without-libv4l1
>>> --with-libv4l2-libs=/usr/lib/
>>> --with-libv4l2-includes=/usr/include/
>
> see above: no special switches should be needed (if libv4l is installed)
>
>>>
>>> and GEM complains about the camera when I start pix_video (and I get no
>>> video image):
>>>
>>> v4l: VDIOCGCHAN: Invalid argument
>>>
>>> This device/camera must only have one channel?
>
> yes, but how is Gem supposed to know?
> anyhow, it shouldn't really matter, as the driver will either ignore the
>   channel-change request or you could set it to "channel 0".
>
>>>
>>> I can't tell if I'm using v4l1 or 2. configure tells me v4l: yes not
>>> matter if its v4l1 or v4l2 I enable. I also have a vague memory that
>>> configure should tell me what v4l its using, like:
>>>
>>> v4l: yes (libv4l2)
>
> your memory might be correct, but the world moves on and
> configure-scripts get updated.
>
> i'll check back on my eee which version of libv4l i'm using.
>
> fgamsdr
> IOhannes
>
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