On Wed, 4 Feb 2009, kilgota@xxxxxxxxxxxxxxxxxxxxxx wrote:
On Wed, 4 Feb 2009, Adam Baker wrote:
On Wednesday 04 February 2009, kilgota@xxxxxxxxxxxxxxxxxxxxxx wrote:
<snip description of attempting to stream from 2 cameras at once>
4. After removing the first camera which was plugged in, I tried to start
the stream from the second one. The stream will not start. A message says
that
Cannot identify 'dev/video0': 2. No such file or directory.
This line points to an error in your test method.
You need to start the second stream with svv -d /dev/video1 to tell it to
pick
the second camera.
Adam
Oops, right.
Well, in that case I have to report that two cameras work simultaneously just
fine. No problem at all.
For completeness, I should add the following:
ps ax now shows two svv processes. One of them is svv -d /dev/video1 and
is followed by [sq905] and the second one is svv followed by [sq905]. Why
in reverse order? Well, probably it is that I now fired up the second
camera first and the first one after that. The workqueue in the
module is started with
dev->work_thread = create_singlethread_workqueue(MODULE_NAME);
so these are distinct instances of [sq905].
Now am I supposed to check what happens if I start jerking them off of
their tethers without closing the capture windows? No thanks, not this
time. Let's wait until that problem is solved with just one camera. :)
Theodore Kilgore
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