I built the kernel with pwc built-in and also installed motion to grad images from my Logitech Quickcam Zoom. I insert module using insmod pwc power_save=1 (necessary for this camera). But the problem is all the images I got are greenish and distorted. Can someone help me? Got stuck on this and help is badly needed.

I am using Asus WL-500g with brcm-2.4

I check the dmesg which shows an error message:
pwc Video mode SIF@10 fps is only supported with the decompressor module (pwcx).

What does this mean and is there a parameter I need to set in motion.conf?

root@Asus01:~# lsmod
Module                  Size  Used by    Tainted: P 
pwc                    43368   0
videodev                8016   1 [pwc]
wlcompat               14944   0 (unused)
ehci-hcd               20556   0 (unused)
uhci                   29044   0 (unused)
ip_conntrack_tftp       1712   0 (unused)
ip_nat_irc              2336   0 (unused)
ip_conntrack_irc        3128   1
ip_nat_ftp              2960   0 (unused)
ip_conntrack_ftp        4272   1
ppp_async               7884   0 (unused)
ppp_generic            22300   0 [ppp_async]
slhc                    6064   0 [ppp_generic]
wl                    630776   0 (unused)
usbcore                71296   1 [pwc ehci-hcd uhci]
switch-robo             4540   0 (unused)
switch-core             4864   0 [switch-robo]
diag                   25520   0 (unused)

There was a thread here with similar problem but nobody answered ...
http://forum.openwrt.org/viewtopic.php?id=11559

Thanks!
Gary

Can you try to compile latest Kamikaze trunk (brcm47xx, 2.6 Kernel) with kmod-video-pwc and setpwc packages and the other related packages?

Maybe it works better with 2.6 Kernel. Can't help you with devices running OpenWrt and a 2.4 Kernel. I don't care about the 2.4 Kernel series anymore...

(Last edited by forum2008 on 8 Mar 2008, 09:45)

:-(

The reason I chose 2.4 is that I need the wifi and I have little budget left to replace Asus' wifi card with an atheros card because I have 20+ routers to be deployed...

Anybody with experience of pwc on 2.4? Or maybe you can suggest a cheap webcam with a working driver other than pwc on 2.4?

Thanks!

ok, I really wanted to get this work and I had a feeling that the problem was configuration - probably sampling too fast from the camera given the error msg. So I sat through the day and brute force different option combinations. Eventually, it turned out that I needed to set the width to 160 and height to 128 (in motion.conf), much smaller than the original default 320:240, even if the camera quickcom zoom itself can support 640:480. Now I can get tiny images but at least they are not greenish and distorted! Hopefully this will be useful to someone else using pwc on a 2.4 kernel.