Hi everybody, I'd like to retrieve video frames from a video capture device on embedded-linux. I'm using a memory mapping from the grabbing device initiliazed by a call to VIDIOCGMBUF. In its own thread, I've a successfull call to the VIDIOCMCAPTURE ioctl command. But when I want to release my grabbed frame with the VIDIOCSYNC command, it fails :-( Do you have any idea on how to find the information to solve this ? or how to configure device to acquire video frames without a simple "read" call on the device ? Thank's a lot. Trick Lo.