On one system we use, the camera needs to be initialized correctly.
The mjpg_streamer program  performs the correct initialization.  We
just run that program and then kill it shortly thereafter:

export MJPG_ROOT=/usr/local
export LD_LIBRARY_PATH=$MJPG_ROOT/lib
$MJPG_ROOT/bin/mjpg_streamer -i "input_control.so -d /dev/video0"  -o
"output_http.so -w /usr/local/www -p 8081"&
sleep 2
killall mjpg_streamer

On Thu, May 6, 2010 at 8:26 AM, Blaise Gassend <blaise@willowgarage.com> wrote:
>> Thanks, I don't know how I missed that.
>
> It probably isn't in the default installs.
>
>> I got the node running with a joystick, and I can see it printing out
>> stuff like
>> [ INFO] 1273095684.837439000: PanTilt moving pan=0, tilt=5
>> but I can't get the camera to actually move. Is there some magic I'm
>> missing?
>
> I know that the node works because we use it, but I haven't actually
> interfaced with it directly. Have you tried moving by larger amounts?
> Perhaps you need tilt to be 1000 or 1e6 before you start getting visible
> motion.
>
> Blaise
>
>
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