On Thursday 28 February 2008, Dems wrote: > Hi, I have a Xbox live Vision webcam (045e:0294) device, and i managed > to get it working with uvcvideo driver but with revision 147 ( svn > checkout -r 147 svn://svn.berlios.de/linux-uvc/linux-uvc/trunk) > With this older revision my webcam work fine and here is what i can see > in dmesg : > > > [590301.554701] Linux video capture interface: v2.00 > [590301.558325] uvcvideo: Found UVC 1.00 device Video Camera > (045e:0294) > [590301.565932] usbcore: registered new interface driver uvcvideo > [590301.565936] USB Video Class driver (v0.1.0) > [590362.019163] uvcvideo: Failed to query (129) UVC control 1 (unit 0) : > -32 (exp. 26). > [590438.635275] uvcvideo: Failed to query (1) UVC control 1 (unit 0) : > -32 (exp. 26). > [590461.272334] uvcvideo: Failed to query (1) UVC control 1 (unit 0) : > -110 (exp. 26). > [590474.309501] uvcvideo: Failed to query (1) UVC control 1 (unit 0) : > -110 (exp. 26). > [590553.455579] uvcvideo: Failed to query (1) UVC control 1 (unit 0) : > -110 (exp. 26). > [590656.259387] uvcvideo: Failed to query (1) UVC control 1 (unit 0) : > -110 (exp. 26). > > > > But when I get latest svn version, recompile install the driver and load > the module my webcam does not work anymore. There is still /dev/video0 > created but it deos not work and here is what i can see in dmesg : > > [591039.607261] Linux video capture interface: v2.00 > [591039.611234] uvcvideo: Found UVC 1.00 device Video Camera > (045e:0294) > [591039.699539] usbcore: registered new interface driver uvcvideo > [591039.699545] USB Video Class driver (v0.1.0) > [591051.421402] uvcvideo: Failed to query (131) UVC control 7 (unit 2) : > -32 (exp. 2). > [591051.422758] uvcvideo: Failed to query (135) UVC control 2 (unit 2) : > -32 (exp. 2). > > > I use Ubuntu 7.10 with kernel 2.6.22-14-generic.
Have you upgraded your kernel in-between ? How does it fail to work exactly ? >From the logs you posted it seems your webcam is quite buggy. It fails to answer many USB requests, probably because of timing issues. If that's the case there's not much I can do about it. Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
