Unfortunately, I can't, because I never see it. One of the very few
disadvantages with reading LKML via a newsreader.
> On Mon, 2003-06-30 at 22:47, H. Peter Anvin wrote:
>>Presumably only on architectures which use memory-mapped IO address
> On ones that don't we use the x86's existing facilities for doing
> this, ioperm() and direct I/O instructions.
> These issues are platform dependant for other reasons anyways
> (endianness, barrier instructions needed, etc.)
Right. As long as this is clear to people; I'm not sure it always is.
Perhaps a libdirectio would be useful?
> But everything the most demanding testcase in userspace needs (this
> being xfree86) needs can be done with the existing facilities.
> Unlike other people, I do not see the value in having 50 ways to
> do the same thing. :-)
Agreed with that, *as long as* the implementation is sane.
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