Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 18 Sep 1997 08:56:54 +0200 (MEST)
From:      Søren Schmidt <sos@sos.freebsd.dk>
To:        tlambert@primenet.com (Terry Lambert)
Cc:        hackers@freebsd.org
Subject:   Re: INB question
Message-ID:  <199709180656.IAA01026@sos.freebsd.dk>
In-Reply-To: <199709180041.RAA21191@usr04.primenet.com> from Terry Lambert at "Sep 18, 97 00:41:48 am"

next in thread | previous in thread | raw e-mail | index | archive | help
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
..



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199709180656.IAA01026>