Hi, the second capture fails because the first one allocates all the bandwidth on the USB-bus. The resource that is busy is not the camera but the USB-bus. -Peter > > I've been unable to get two USB CPIA cameras to work reliably on > > the same machine at more or less the same time. Either camera > > > (/dev/video0 or /dev/video1) will work fine by itself when the > > other camera is not being used--the problem arises when trying to > > use them at or near the same time. While it is possible to open > > /dev/video0 and /dev/video1 simultaneously, if one device is in the > > middle of a VIDIOCMCAPTURE > then opening the other device fails > > with a "device or resource busy error". > -- Feeling amorous, she looked under the sheets and cried, "Oh, no, it's Microsoft!" ------------------------------- Email: Peter_Pregler@xxxxxxxxx