Re: Why not use v4l2? (was: Grabbing frame off of capturing video)

[Alan Cox]

> kiobufs is definitely the way to go. Could it be possible to translate
> mmap'ed buffers into DMA buffers in the host module, i.e. allocate
> vmalloc space for the app and ask the driver to dump into it? Where can
> I find an introduction to kiobufs?

With the infrastructure as it is now you can do some of what is needed. But
since user pages can be out of DMA range we need additional magic not yet
in the main kernel


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