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From: mark@imagen.UUCP (Mark Peek)
Newsgroups: comp.os.minix
Subject: Re: Compiling Minix with MSC.  Also, SMC disk controller
Message-ID: <1341@imagen.UUCP>
Date: Mon, 13-Jul-87 18:13:28 EDT
Article-I.D.: imagen.1341
Posted: Mon Jul 13 18:13:28 1987
Date-Received: Wed, 15-Jul-87 03:42:02 EDT
References: <6@ipmoea.UUCP>
Organization: Imagen Corp., Santa Clara CA
Lines: 40
Summary: SMC 9224 Hard Disk Device Driver

In article <6@ipmoea.UUCP>, ericr@ipmoea (Eric Roskos) writes:
> Recently I posted a query here as to whether anyone had experience with
> the Modular Circuit Technologies hard disk controller under Minix, and
> promised to summarize the results.  To summarize,
> 
> 1) It is another of the ones that doesn't work with Minix (without
>    driver modifications)
> 
> 2) Apparently it uses the Scientific Microsystems disk controller, which was
>    apparently one of the first disk controllers to come out, according to
>    someone who replied.
> 
> also, in case anyone wonders,
> 
> 3) I don't have it working yet with Minix either, but plan to.
> 
> Thanks are due to Thomas Sumner (thos@ucsfcca) for his reply to my query.

	I have an LDS (I think that is the name) controller that uses the
SMC 9224 (Universal Disk Controller) part. It behaves almost identical to
an MCT that is here at work. Since I could not get a hardware manual for
either of them, I spent part of my weekend disassembling the fixed disk bios
that is on-board the controller. It was quite enlightening to see how different
my controller is than the IBM spec controller.

	I am starting on the Minix device driver for it and I should have it
finished in the next few days (the hard part is figuring out how to address the
9224). If anyone with these type of controllers would like to beta test it
before I release it to the net, just drop me a line.

		Mark

----

Name:	Mark Peek
Mail:	Imagen Corp. 2650 San Tomas Expressway, P.O. Box 58101
        Santa Clara, CA 95052-8101
AT&T:	(408) 986-9400
UUCP:	...{decvax,ucbvax}!decwrl!imagen!mark
ARPA:	mark@ford-scf1.arpa