[plug] Compiling OV511 module with compression for PCVC720K

[Steve Boak]

Hi Alex

I'm using a Logitech Quick-Campro 4000 which is internally a Phillips, with a 
locally compiled 2.6.14.1 kernel. The driver I am using is the pwc source 
package from http://www.saillard.org/linux/pwc/ - the documentation mentions 
your camera, so I guess it should work for you.
Unpack it into /usr/src, make and make install, and it 'just works'. At least 
it did for me :-)

I found 'lsusb', 'tail -f /var/log/syslog', and 'xawtv -device /dev/video0' 
the best tools for debugging. 

Steve


On Sun, 15 Jan 2006 09:55 pm, Alex Nordstrom wrote:
> So I thought it was once again time to make yet another attempt to make
> my Web cam work. Nothing like a bit of frustration to age one's soul.
>
> It's a Philips ToUCam XS PCVC720K. This is the OV518 version of it,
> which requires the decompression module, whereas the OV511 module
> shipped with Debian does not feature decompression.
>
> I'm running Debian Sid and the 2.6.15-1-686 Debian package of the kernel
> with no desire of recompiling. At some point ages ago (I think it might
> have been under a 2.4 kernel), I managed to get it working, but failed
> to document the process, and it broke after some minor kernel upgrade.
>
> I recently found out about module-assistant and thought this might
> provide me a saner way of trying to compile the needed module. I
> installed module-assistant and ov511-source, ran m-a prepare and m-a -t
> build ov511-source.
>
> gcc then chokes with the following dying message:
> ov511.c:47:33: error: linux/modversions.h: No such file or directory
>
> And indeed, modversions.h is not in /usr/src/linux, but rather
> in /usr/src/linux/include/config. Even if I patch the source so that it
> looks in the proper place, I still get lots of compilation errors, and
> I can't think that I'm meant to be doing this for every file that the
> module source thinks is in a different place. After all, this is a
> Debian package... So what am I doing wrong?
>
> What's the kosher way of getting this piece of plastic to capture some
> images? I've tried manually and with module-assistant, yet nothing
> seems to work. What's the secret trick? Or should I just toss the
> camera and get another one? If so, which? It seems Web cam
> manufacturers change chipsets without changing the model number on a
> semiweekly basis.

-- 
Steve Boak, P.O. Box 240, Nannup, WA 6275
Nannup Telecentre IT support, ph (08) 9756 3022
Free World Dialup (voip) number 454566