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From: Gabor Zahemszky <zgabor@CoDe.hu>
Message-Id: <199604191211.MAA03635@CoDe.CoDe.hu>
Subject: Re: How can I read/write from/to an I/O-port?
To: kuku@gilberto.physik.rwth-aachen.de
Date: Fri, 19 Apr 1996 12:11:04 +0000 (GMT)
Cc: freebsd-questions@freebsd.org
In-Reply-To: <199604191028.MAA13352@gilberto.physik.rwth-aachen.de> from "Christoph P. Kukulies" at Apr 19, 96 12:28:50 pm
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> 
> > 
> > Hi,
> > 
> > I have a little problem. So I hope someone can help
> > me:
> >  
> > Under Linux a /dev/port exits to write/read to/from an I/O-port.
> > Does a similar /dev/??? exits under FreeBSD or must I write
> > a little device driver for this?
> 
> Under FreeBSD there is /dev/io.
> 
> Do an open("/dev/io",flags,mode) on it and you can access i/o
> ports using in/out instructions.

OK.  How?  What does flags mean?  How can I use the fd, I get from open?
(A little example please....)

-- 
	Gabor Zahemszky <zgabor@CoDe.hu>

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Earth is the cradle of human sense, but you can't stay in the cradle forever.
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