Re: zc3xx webcam (041e:4034 Creative Webcam Instant) stopped working some time ago (since gspca kernel integration?)

From: Ian Pickworth <ian@pickworth.me.uk>
To: video4linux-list@redhat.com
Subject: Re: zc3xx webcam (041e:4034 Creative Webcam Instant) stopped working some time ago (since gspca kernel integration?)
Date: Wed, 17 Dec 2008 13:41:22 +0000	[thread overview]
Message-ID: <49490182.3000507@pickworth.me.uk> (raw)
In-Reply-To: <4948F603.1070906@wakelift.de>

Timo Paulssen wrote:
> Hello,
> 
> I recently tried using my webcam, the Creative Webcam Instant (usb ID
> 041e:4034) again, but I can't get it to work any more.
> 
> When I started using this webcam, i could get it to work with the
> spca5xx driver, which I usually compiled per hand and inserted into the
> kernel. Then came gspcav1, which worked, too. But with the gspca, that
> is integrated in the kernel now (I'm using 2.6.27.9 retrieved from
> kernel.org) the webcam won't work.
> 

I'm not a developer, so can't explain what the change is, but there is a
significant change to where the webcam data gets processed which was
introduced with the move of the gspca drivers into the kernel.

Basically, you now need a user space driver library - libv4l - to do the
work. You can get the library from here:

http://people.atrpms.net/~hdegoede/libv4l-0.5.7.tar.gz

After making it, you preload it when running spcaview like this:

LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so spcaview -d /dev/video_webcam

as an example.

Regards
Ian

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