Try using /dev/video1 (or whatever device appears when the Epiphan
driver is loaded).  /dev/vga2usb0 is not a v4l device, so you won't be
able to get capture data out of it.

G

On 2/21/2012 3:11 PM, Frank Van Damme wrote:
> Trying to find out why I'm still getting the test image from a epiphan
> vga2usb LR (throughout the entire recording), I'm using a gstreamer
> test line...
> 
> $ sudo gst-launch --gst-debug=2 v4lsrc device=/dev/vga2usb0 ! fakesink
> Setting pipeline to PAUSED ...
> 0:00:00.023765282  8239      0x20df080 WARN                     v4l
> v4l_calls.c:89:gst_v4l_get_capabilities:<v4lsrc0> error: error getting
> capabilities Invalid argument of from device /dev/vga2usb0
> ERROR: Pipeline doesn't want to pause.
> ERROR: from element /GstPipeline:pipeline0/GstV4lSrc:v4lsrc0: Could
> not get/set settings from/on resource.
> Additional debug info:
> v4l_calls.c(89): gst_v4l_get_capabilities ():
> /GstPipeline:pipeline0/GstV4lSrc:v4lsrc0:
> error getting capabilities Invalid argument of from device /dev/vga2usb0
> Setting pipeline to NULL ...
> Freeing pipeline ...
> 
> ... that's it. I've been googling for a couple hours now, but I don't
> seem to find anything applicable to my situation.
> 
> The Epiphan driver version is 3.26.0.26, by the way.
> 

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