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From: Søren Schmidt <sos@sos.freebsd.dk>
Message-Id: <199709180656.IAA01026@sos.freebsd.dk>
Subject: Re: INB question
In-Reply-To: <199709180041.RAA21191@usr04.primenet.com> from Terry Lambert at "Sep 18, 97 00:41:48 am"
To: tlambert@primenet.com (Terry Lambert)
Date: Thu, 18 Sep 1997 08:56:54 +0200 (MEST)
Cc: hackers@freebsd.org
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In reply to Terry Lambert who wrote:
> If a device doesn't exist, what does inb return?  0xff, right?

Wrong, result is not known, and depends on implemetation details
on the MB and to some extent the cards put in the bus...

> Specifically, how do I know if something lives at a given port?

By doing intelligent probes, or knowing up front what to look for..

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Søren Schmidt               (sos@FreeBSD.org)               FreeBSD Core Team
                Even more code to hack -- will it ever end
..