The following two device driver works fine seperately.

1) USB WWWCam (STMicro MJPEG)
-> CAM_Open() / CAM_Close()
-> Packet Size: 895, 8 Frames
2) USB Video Encoder (usbvision NT1004)
-> VID_Open() / VID_Close()
-> Packet Size: 1023, 8 Frames

When I try to capture image stream from both drivers simultaneously,
the second device is closed automatically, that is VID_Close()
function is called.

Does anybody experience same difficulty?

/Gillian Kim
jacoke@gmail.com