Quickcam pro 4000, pwc problem

[John Talbut <john@dpets.demon.co.uk>]

Can anyone explain the official Debian set up for pwc based web cams?  After a
good few hours of trying to work it out, this is what I have come up with.

My usb set-up seems to be working OK under udev.  lsusb reports:

Bus 001 Device 001: ID 0000:0000
Bus 001 Device 002: ID 046d:08b2 Logitech, Inc. QuickCam Pro 4000

Both gqcam and xawtv recognise the device, but the former just outputs a green
rectangle and the latter a grey screen.

Most of the references that report success suggest installing the pwc module
from Luc Saillard.

The only Debian package for pwc is pwc-source .  According to the copyright
information fro this package:

"This package was debianized by Victor Seva <linuxmaniac@torreviejawireless.org> on
Wed, 12 Jan 2005 21:51:35 +0100.

It was downloaded from http://www.saillard.org/linux/pwc/files/pwc-10.0.6a.tar.bz2

 (C) 1999-2003 Nemosoft Unv.
 (C) 2004      Luc Saillard <luc@saillard.org>
 (C) 2005      Victor Seva  <linuxmaniac@torreviejawireless.org> ( Package
Maintainer )
 (C) 2005      Sean Finney  <seanius@debian.org> ( Package Sponsor )

Upstream Author: Luc Saillard <luc@saillard.org>"

So presumably it is the aforementioned module.  However, acquiring the Debian
package and attempting to compile it seemed simply to add source files to
/usr/src/linux-source-2.6.15/drivers/usb/media , though I get the impression
they were there in the first place.  Is that correct, is this module now
incorporated in linux-source-2.6.15?  Or do I need to recompile the kernel now?

The compilation and attempt to install did not seem to come up with any external
modules, so it seems as if in Debian pwc is only run in the kernel.  If so, how
do I get my webcam to work?  If not, what am I doing wrong?

John Talbut