On 09/22/2011 07:29:57 AM, Alexey Fisher wrote:
On 20.09.2011 22:34, Pitt, Jason N wrote:
> I have a ubuntu 11.04 machine that I'm trying to capture 12 usb
webcam feeds on.
...
> I only need to capture an image from every camera every 2.4 seconds,
> if someone can provide me a good work-around I'd appreciate it!
do you capture from all 12 at the same moment?
maybe spread them around, a different one every 200 msec
usb controller or usb device is usually responsible URB errors.
...
27 is EFBIG in this case,
in 2.6.39.3 there are 5 references to EFBIG in drivers/usb. the three in
drivers/usb/host/ehci-sched.c are associated with debug messages so if
you
activate the messages (google, i don't remember how) you'll narrow it
down
a bit. while you're at it you might want to add debug messages to the
other
two references in drivers/usb/host/uhci-q.c
this is all modulo which kernel version you are running (and can
get pretty hairy). the usb devel mailing list might be helpful.
hth
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