*BSD News Article 33807


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From: wollman@ginger.lcs.mit.edu (Garrett Wollman)
Newsgroups: comp.os.386bsd.questions
Subject: Re: Microchannel Support
Date: 28 Jul 1994 20:20:41 GMT
Organization: MIT Laboratory for Computer Science
Lines: 21
Message-ID: <3193up$ihn@GRAPEVINE.LCS.MIT.EDU>
References: <3169ik$lah@portal.gmu.edu> <MYCROFT.94Jul27175952@duality.gnu.ai.mit.edu>
NNTP-Posting-Host: ginger.lcs.mit.edu

In article <MYCROFT.94Jul27175952@duality.gnu.ai.mit.edu>,
Charles M. Hannum <mycroft@duality.gnu.ai.mit.edu> wrote:

>I suspect ST506/IDE/ESDI disks would
>require all new code.

So far as I know, there are no ST-506 products for MCA.  There may be
IDE, but the standard seems to be IBM's proprietary ESDI controller
which is completely incompatible with all the others.

The gentleman who performed the 386BSD port to the Micro Channel used
IBM's protected-mode BIOS to talk to the disk.  Mach 3.0 includes code
which does the same thing.

-GAWollman

-- 
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