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    SubjectRe: [RFC PATCH 0/7] Introducing ZIO, a new I/O framework
    From
    2011/11/26 Alessandro Rubini <rubini@gnudd.com>:

    > I'm open to suggestions (_we_ are) about how to easily use IIO for
    > output, for hardware timestamps (we have 3 32-bit fields) and for very
    > large data blocks, with DMA to/from user space -- sure we don't have this
    > last point in ZIO at this point in time.

    The latter seem like a case for the dma-buf mechanism.
    http://lwn.net/Articles/462524/

    (Interesting hardware you found Alessandro! :)

    Yours,
    Linus Walleij


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