Gerd Knorr wrote: > > > OK - then how about keep the REQBUFS(0) (or something similar), and ... Thanks. > Packed pixel formats can use the v4l2_pix_format.bytesperline to > specify any padding they want. Planar formats can't have padding > (any objections on this? If so: why? I can't think of any useful > application for this...). I have seen some mmx filters, and even some hardware, that requires the lines to be DWORD or QWORD aligned. Granted, this is rare, but the whole point of the DMA to userspace API would be to provide high performance, even in such circumstances. > Gerd -justin
