Gerd Knorr (kraxel@xxxxxxxxxxx): > V4L2_FIELD_ALTERNATE = 7, /* both fields alternating into > separate buffers */ I'm curious about the spec for ALTERNATE mode. Definitely one thing I'd really love from ALTERNATE mode would be to be able to get an interrupt every input field, that is, use V4L2 as a clock. This is important when doing a software-genlock, or measuring error in a deinterlacer. Could it be the case that drivers only support ALTERNATE mode if the hardware provides them separately, rather than a frame-providing chip faking ALTERNATE mode? Or, should I try and draft some V4L2 clock API instead? Thoughts? -Billy
