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Date: Sun, 17 Oct 2004 14:00:42 -0700
From: Bruce M Simpson <bms@spc.org>
To: Jan Opacki <opacki@acn.waw.pl>
Message-ID: <20041017210042.GA18249@empiric.icir.org>
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	Giorgos Keramidas <keramida@freebsd.org>
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cc: freebsd-hackers@freebsd.org
cc: Giorgos Keramidas <keramida@freebsd.org>
Subject: Re: Freebsd assembly programming - IN/OUT commands.
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On Sun, Oct 17, 2004 at 09:46:29PM +0200, Jan Opacki wrote:
> Thanks for help. i386_set_ioperm() is exactly what i need.

I have to say though I've had processes dump core the first time I've
tried doing I/O port accesses after calling i386_set_ioperm() on 5.x
since 5.0. This behaviour is sporadic. With opening /dev/io, I have
had no problem.

Also, the /dev/io method appears to work on amd64, whereas the
i386_set_ioperm() method does not.

BMS