From: ST <sergei7@xxxxxxxxx> Subject: some questions about VIDIOCGMBUF Date: Wed, 9 Jan 2002 00:08:13 -0800 (PST) > I'm using the mmap method of reading images from my tv > card. Checking the size variable in the struct > video_mbuf, it shows 4259840bytes. That is the size of > 1 single frame right? No. That size is for whole of buffer required by the driver. Usually for 2 frames(see 'frames' of the struct video_mbuf), and the size of each frame is the largest frame what the driver supports (and extra 8 byte?). Kentarou Fukuchi