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.

Best regards,

Laurent Pinchart
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