sp2208wfp webcam: anyone succeeded?
Gianluca Cecchi
gianluca.cecchi at gmail.com
Mon Feb 18 22:36:00 UTC 2008
An update from myself after some investigation.
The kernel module provided by ov51x-jpeg (
http://www.rastageeks.org/ov51x-jpeg/index.php/Main_Page ) doesn't seem to
work for my webcam even if I found success stories by ubuntu users.
Instead I was able to have it working with the uvcvideo kernel module at
http://linux-uvc.berlios.de
Downloaded and compiled from svn trunk.
Only problem is that sometimes you have to rmmod/modprobe several times
because the webcam answer delay to the driver's device query seems too long
(perhpas is differently managed between windows and linux in usb/ehci
stacks).
See for more details this thread:
https://lists.berlios.de/pipermail/linux-uvc-devel/2007-December/002633.html
Note that the thread is about the 20" version of the monitor and the id
there is 05a9:2641, while the one in the 22" is 05a9:2643.
some problems to investigate more:
1) when loading the module the /dev/video0 device is automatically created,
but with permissions
crw-rw----+ 1 root root 81, 0 2008-02-18 22:55 /dev/video0
and I have to manually set 666
2) my mb is an intel dp35dp with audio integrated.
If I connect the webcam usb cable after boot I get
[gcecchi at tekkaman trunk]$ cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0x90320000 irq 23
1 [SP2208WFP ]: USB-Audio - Monitor Webcam (SP2208WFP)
Mic-OmniVision Technologies,
Inc.538-2640-07.08.09.6Monitor Webcam (SP2208WFP)
Instead if the usb is connected at boot the integrated audio card
disapears....
Apparently in bios I have no options about this behaviour...
is it a common problem with usb based audio or does anyone have suggestions?
PS: audio in fro the webcam not tested yet
Gianluca
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