From: Sebastian Heidl <heidl@zib.de>
To: linux-kernel@vger.kernel.org
Subject: DMA to/from user buffers
Date: Tue, 4 Sep 2001 16:45:09 +0200 [thread overview]
Message-ID: <20010904164509.A27144@csr-pc1.zib.de> (raw)
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_
--
next reply other threads:[~2001-09-04 14:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-04 14:45 Sebastian Heidl [this message]
2001-09-04 19:30 ` Gerd Knorr
2001-09-05 7:51 ` Helge Hafting
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