Bill Maidment wrote:
> Mark McClelland wrote:
>
> > I believe this is your problem:
> >
> > CONFIG_USB_BANDWIDTH=y
> >
> > IIRC, that is the "Enforce Bandwidth Allocation" option. I could never get that to
>work reliably with ov511, even with only one camera. There is no real
> > penalty for turning it off, to my knowledge.
>
> Mark and others
>
> Just an update on multiple cameras. I've upgraded to the webcam program in
>xawtv-3.41 and made a small amendment to allow multiple cameras each with its
> own parameter file. Still the same problem of picture corruption with the quadrabus
>card (OHCI). I've tried capturing from separate computers (one on the
> quadrabus and the other using a UHCI card) and there is no corruption, so I think
>the xawtv/webcam software is working fine.
>
> I'm left with the conclusion that the problem lies with the four quadrabus inputs
>sharing the same IRQ.
I hate replying to my own email, but hopefully this will save you guys wasting any
more time on this (apparent) problem.
I plugged my second camera into a different quadrabus port and voila everything is
working fine, with no picture corruption.
It looks like it is a hardware problem -- now to find out which combinations of ports
work and which don't, and then a little chat with Belkin.
Thanks
Bill
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