Hi Lorenzo, On Friday 30 May 2008, Lorenzo Battistini wrote: > Hi Laurent, > > 2008/5/29 Laurent Pinchart <[EMAIL PROTECTED]>: > > Hi Lorenzo, > > > > On Monday 26 May 2008, Lorenzo Battistini wrote: > >> Hi Laurent > >> > >> 2008/5/23 Laurent Pinchart <[EMAIL PROTECTED]>: > >> > Hi Lorenzo, > >> > > >> > On Wednesday 21 May 2008, Lorenzo Battistini wrote: > >> >> Thanks Laurent, > >> >> tha patch permits to view video stream through luvcview. > >> > > >> > Thanks for the report. > >> > > >> >> But, for now, it's the only software that I was able to use. > >> >> For example, gqcam gives "Error reading image..." and a green screen; > >> > > >> > gqcam is old an unmaintained. It doesn't support V4L2. > >> > > >> >> skype gives > >> >> > >> >> Skype V4L2: Could not find a suitable capture format > >> >> Skype V4L2: Could not find a suitable capture format > >> >> Skype V4L2: Could not find a suitable capture format > >> >> Skype V4L2: Could not find a suitable capture format > >> >> Starting the process... > >> >> Skype Xv: Xv ports available: 1 > >> >> Skype XShm: XShm support enabled > >> >> Skype Xv: Using Xv port 73 > >> >> Skype Xv: No suitable overlay format found > >> > > >> > Your camera supports MJPEG only. Maybe Skype doesn't implement MJPEG > >> > decoding ? > >> > > >> >> and a black screen. > >> >> > >> >> Loading the patched driver, kernel says: > >> >> > >> >> uvcvideo: Found UVC 1.00 device USB Web Camera (1c4f:3000) > >> >> uvcvideo: Failed to query (135) UVC control 1 (unit 0) : -32 (exp. > >> >> 26). input: USB Web Camera as > >> >> /devices/pci0000:00/0000:00:02.0/usb1/1-2/1-2:1.0/input/input7 > >> >> usbcore: registered new interface driver uvcvideo > >> >> USB Video Class driver (SVN r209) > >> > > >> > If you're looking for a video conferencing application try Ekiga. It > >> > should work with the Linux UVC driver. > >> > >> But ekiga gives "Error while opening video device USB Web" (I didn't > >> find details). > > > > Could you please check the kernel log after Ekiga's failure and report > > any message printed by the driver ? > > Sure. I didn't think of it. > > uvcvideo: Failed to query (1) UVC control 1 (unit 4) : -110 (exp. 1).
The error logged by the driver is a VIDIOC_S_INPUT failure. I had a closer look at the USB descriptors. The reports has a selector unit and two input terminals, one for the sensor and one for a composite input. Does your camera really have a composite input ? Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
