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Subjectuvcvideo: Finally fix Logitech Quickcam for Notebooks Pro
Date
Hello,
I have a Logitech Quickcam for Notebooks Pro camera (046d:08c3) which just
does not work even with kernel 2.6.31 and has never worked well before.

On http://linux-uvc.berlios.de/, there are two problems listed. I want to
really fix these two problems so the camera will just work after plugging in
(and not disconnect). I started with problem no. 2 as this causes the camera
not to work at all when plugged in:

usb 5-2.4: new high speed USB device using ehci_hcd and address 7
usb 5-2.4: configuration #1 chosen from 1 choice
uvcvideo: Found UVC 1.00 device <unnamed> (046d:08c3)
uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling
workaround.
uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26).
uvcvideo: Failed to initialize the device (-5).

When I do "modprobe snd_usb_audio", then "rmmod snd_usb_audio" and
finally "modprobe uvcvideo", it works. So it looks like snd_usb_audio does
some initialization that allows uvcvideo to work. It didn't work at all I
didn't have snd_usb_audio module compiled.

What was the change that supposedly broke this in 2.6.22?

--
Ondrej Zary


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