Laurent Pinchart wrote: > Hi, > > On Thursday 17 July 2008, martuf1 wrote: > >> Hi, >> my notebook has a Syntek camera (174f:8a12), >> lsusb says it's an UVC Camera >> iProduct 3 USB2.0 UVC PC Camera >> (please see attached file for the complete output of the command) >> >> It doesn't work; dmesg says: >> >> [ 8524.914397] uvcvideo: Found UVC 1.00 device USB2.0 UVC PC Camera >> (174f:8a12) >> [ 8524.936046] uvcvideo: Failed to query (135) UVC control 1 (unit 0) : >> -32 (exp. 26). >> [ 8525.170271] usbcore: registered new interface driver uvcvideo >> [ 8525.170278] USB Video Class driver (SVN r231) >> [ 8525.696738] uvcvideo: Failed to query (129) UVC control 1 (unit 0) : >> -110 (exp. 26). >> >> Any idea, help, etc is welcome >> > > Could you please apply the following patch and try again ? Make sure you > report all kernel log messages printed by the uvcvideo driver. > > ----------------------------------------------------------------------------- > Index: uvc_video.c > =================================================================== > --- uvc_video.c (revision 230) > +++ uvc_video.c (working copy) > @@ -899,8 +899,7 @@ > /* Some webcams don't suport GET_DEF request on the probe control. We > * fall back to GET_CUR if GET_DEF fails. > */ > - if ((ret = uvc_get_video_ctrl(video, probe, 1, GET_DEF)) < 0 && > - (ret = uvc_get_video_ctrl(video, probe, 1, GET_CUR)) < 0) > + if ((ret = uvc_get_video_ctrl(video, probe, 1, GET_CUR))) > return ret; > > /* Check if the default format descriptor exists. Use the first > ----------------------------------------------------------------------------- > > Best regards, > > Laurent Pinchart > > > Hi Laurent, here is the output of the patched driver:
$> dmesg [ 7264.493153] Linux video capture interface: v2.00 [ 7264.498565] uvcvideo: Found UVC 1.00 device USB2.0 UVC PC Camera (174f:8a12) [ 7264.750891] usbcore: registered new interface driver uvcvideo [ 7264.750901] USB Video Class driver (SVN r231) [ 7265.281478] uvcvideo: Failed to query (129) UVC control 1 (unit 0) : -110 (exp. 26). $> ls /dev/video0 /dev/video0 After removing the module and modprobing again the output is: $> dmesg [ 7519.034499] uvcvideo: Found UVC 1.00 device USB2.0 UVC PC Camera (174f:8a12) [ 7519.289704] usbcore: registered new interface driver uvcvideo [ 7519.289712] USB Video Class driver (SVN r231) $> ls /dev/video0 /dev/video0 But in both cases, with skype and amsn the cam isn't working (should I use other program to test it?) Thank you, cheers _______________________________________________ Linux-uvc-devel mailing list Linux-uvc-devel@lists.berlios.de https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
