Bradford Barr wrote:
Hey all,
I'm new to Pyro, and I'm having some issues with the V4LCamera. When I
run a Test robot with a V4LCamera device it asks me for the device,
width, height and channel. I leave all of those default and get an error:
V4L constructor '/dev/video0' (160 x 120) x 3 ch = 0
Initializing Video4Linux /dev/video0..Error: with Videochannelioctl
VIDIOCGCHAN: Invalid argument
lsmod shows that I have v4l1_compat installed, and I've used the camera
with other programs (mplayer and opencv). I'm runnning Archlinux, kernel
2.6.27. <http://2.6.27.> Any help would be greatly appreciated.
Thanks in advance,
Brad
Brad,
I don't have time to dig into this this week, but I would suspect it
might be a V4L1 vs V4L2 issue. Take a look at:
pyrobot/camera/v4l/V4L.cpp
it looks like there is a section of code marked with
DUMMY_VIDIOC_QUERYCAP that might work for you. You could use that init
rather than the other, and re-make the file.
Let us know if that helps (or if you solve the problem). Thanks,
-Doug
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