[plug] Compiling OV511 module with compression for PCVC720K

[Alex Nordstrom]

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.

-- 
Alex Nordstrom
http://lx.n3.net/
Please do not CC me in followups; I am subscribed to plug.
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