Hello!

I have a usb webcam A4 TECH USB2.0 PC Camera J (0ac8:c40a).
OS: Ubuntu 9.04 kernel 2.6.28-11-generic
It's work fine, but I want install new version of uvc driver.
I downloaded 
http://linuxtv.org/hg/~pinchartl/uvcvideo/archive/4533a406fddb.tar.gz
and compiled it.
When I runinng mjpg-streamer or motion after calls

ret = ioctl(vd->fd, VIDIOC_DQBUF, &vd->buf); 

uvc driver stops on

return wait_event_interruptible(buf->wait,
   buf->state != UVC_BUF_STATE_QUEUED &&
   buf->state != UVC_BUF_STATE_ACTIVE);

in function uvc_queue_waiton (uvc_queue.c).

At first I thought that patched driver is used in ubuntu, but when i downloaded 
source codes of a kernel I was convinced that in these parts it is invariable.

Please, help me!
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