Re: share memory between kernel and user space

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 29 May 2001 21:06:57 +0100 (BST)

> Is there any way to share a piece of memory which is allocated in kernel
> space with a user space program? (don't use copy_to_user etc.)

mmap.

Take a look at drivers/sound where a lot of drivers do this
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