DMA to/from user buffers

Sebastian Heidl (heidl@zib.de)
Tue, 4 Sep 2001 16:45:09 +0200

Hi,

two questions about using an user-supplied buffer (e.g. malloced
in user space) for DMA transfers:

1. Is it possible ?
2. What restrictions/requirements apply for the buffer (alignment...) ?

Documentation/DMA-mapping.txt only talks about buffers allocated in
kernel space.

thanks,
_sh_

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