Need help with web cam, v4l, etc.

[Thomas Kaiser]

Gary W. Swearingen wrote:
> I'm trying to use "camstream" software with my web cam.
>
> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
> $ caminfo
> CVideoDevice::ResetImagesRGB()
> CVideoDevice::ResetImagesYUV()
> Detected 0 Video4Linux devices.
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> So I've obviously got no v4l device configured.
>
> So I check messages for when I plugged in web cam.
> (It's an odd cheapo thing but I've found it listed
> in some web site as being supported by spca5xx driver.)
>
> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
> % tail /var/log/messages
> May 20 12:15:00 localhost kernel: [865372.491884] usb 1-2: new full 
> speed USB device using ohci_hcd and address 4
> May 20 12:15:01 localhost kernel: [865373.085394] Linux video capture 
> interface: v1.00
> May 20 12:15:01 localhost kernel: [865373.110899] 
> drivers/usb/media/spca5xx/spca5xx-main.c: USB SPCA5XX camera found. 
> Pixart PAC207BCA
> May 20 12:15:01 localhost kernel: [865373.116424] usbcore: registered 
> new driver spca5xx
> May 20 12:15:01 localhost kernel: [865373.116509] 
> drivers/usb/media/spca5xx/spca5xx-main.c: spca5xx driver 00.57.08 
> registered
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> and
>
> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
> $ lsmod | head -3
> Module                  Size  Used by
> spca5xx               626108  0
> videodev               13696  1 spca5xx
>
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> That last line leads me to think there should be a device
> configured.
>
> and
>
> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
> $  cat /proc/devices | grep video
>  81 video4linux
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> so does that.
>
> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
> $ cat bus/usb/devices
>
> (Names the pixart camera, with lots of info of no
> meaning to me.)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> The only related thing the "camstream" docs say is:
>
>     First, make sure the various modules for your TV grabber and/or
>     webcams are loaded if necessary.
>
> Is there some other Linux kernel module I need, or what?
>
>
> Thanks.
>
>
>   
Check if you have a /dev/video* device. And you can use spcaview from 
the spca5xx driver project to see if your cam is working. If it is 
working with spcaview, the driver is ok.

Regards, Thomas