USB video driver

[Donald T Hayford <don%donhayford.com@localhost>]

I'm trying to get the new USB video drivers to work on an embedded 
(non-GUI) Arm processor (NSLU2).  I built a kernel (20081215), added the 
appropriate drivers (uvideo, video), see the driver when it boots up, 
and can capture video using "cat /dev/video0 >test.avi".  I can move the 
avi file to another machine and play the video.  So the basic driver is 
essentially working.

But I can't get anything else to work from that point.  I built xawtv so 
I could use webcam, but get the error message:

-bash-3.2$ 
webcam                                                              
reading config file: 
/home/hayford/.webcamrc                                   
no grabber device available

.webcamrc has in it:
device=/dev/video0


when I run v4lctl, I get:
-bash-3.2$ v4lctl -c /dev/video0 -v 2 snap 
video/testpic1                      
vid-open: trying: 
bktr...                                                      
bktr: ioctl METEORGSUPPIXFMT: Invalid 
argument                                 
vid-open: failed: 
bktr                                                         
no grabber device available

The comment about the brooktree device confuses me, since I thought the 
uvideo device was the equivalent.

This may not be a NetBSD problem, so a referral to a better source of 
info would also be greatly appreciated.

Thanks for any help,
Don