Hi Jim,

> I have successfully compiled and loaded the uvcvideo module with the
> Logitech Quickcam Fusion, but have not gotten it to work with any
> applications. dmesg gives
>
> usb 2-2: new full speed USB device using uhci_hcd and address 104
> uvcvideo: Found UVC 1.00 device <unnamed> (046d:08c1)
>
> and xawtv -hwscan shows
>
> /dev/video0: OK                         [ -device /dev/video0 ]
>      type : v4l2
>      name : USB Video Class device
>      flags:  capture
>
> However when I try to use the camera with xawtv  it gives:
>
> This is xawtv-3.94, running on Linux/i686 (2.6.13.2)
> /dev/video0 [v4l2]: no overlay support
> v4l-conf had some trouble, trying to continue anyway
> Warning: Cannot convert string "-*-ledfixed-medium-r-*--39-*-*-*-c-*-*-*"
> to type FontStruct
> ioctl: VIDIOC_G_STD(std=0x81001b80808c888
> [PAL_H,PAL_K,PAL_60,?,?,SECAM_H,(null),(null),(null),(null),(null),(null),(
>null),(null)]): Invalid argument
> ioctl: VIDIOC_S_STD(std=0x0 []): Invalid argument
>
> and mplayer tv:// -tv driver=v4l2:device=/dev/video0 gives (after other
> messages)
>
> Playing tv://.
> TV detected! ;-)
> No such driver: v4l2
>
> The loaded modules include
>
> uvcvideo               42884  0
> v4l1_compat            13956  1 uvcvideo
> videodev                7424  1 uvcvideo
> v4l2_common             4864  1 uvcvideo
>
> Any hints would be greatly appreciated.  Thanks!

Xawtv is known not to work with the Linux UVC driver. It doesn't support V4L2 
properly. The latest mplayer version should work, as I sent a patch to fix a 
few small problems. You could also try luvcview and ekiga.

Laurent Pinchart
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