Hello, I used to work with v4l2 and bttv2 on a bt848 based capture card. Now I need USB webcam III support on 2.2.16 (USB back-port and Mark McClelland's ov511 driver). As far as I know there's no v4l2 interface for ov511 and I have to switch to v4l. My question is: Is there any simple and complete piece of code, like Bill Dirks' xcaptest.c, to be used as a v4l tutorial? I have already ``talked'' to ov511 through v4l, and I posted my experiences and questions in my first email to the list. It's entitled ``usb webcam III and v4l on redhat 6.2 (2.2.16)'' and archived in 2000-November. I would appreciate any kind of tutorial (shorter than xawtv sources, please) on setting capture modes (e.g. YUV420, RGB565, etc.), capture sizes (e.g. QCIF, CIF, etc) and managing capture buffers. Thank you in advance, Matias.