Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!nosc!ucsd!rutgers!att!ucbvax!MACBETH.STANFORD.EDU!G.GUTOW
From: G.GUTOW@MACBETH.STANFORD.EDU (Jonathan Gutow)
Newsgroups: comp.sys.mac
Subject: Looking for info on drivers for old serial hard disks...
Message-ID: <12417517793.19.G.GUTOW@MACBETH.STANFORD.EDU>
Date: 27 Jul 88 01:42:29 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 26


	I have a Mac Plus equivalent computer: ie 512k mother board, with the
Apple ROM upgrade and Dove upgrade to 1Mbyte.  I have an old serial hard
drive test marketed by Apple a few years ago.  I've managed to get it running
with the new ROMs, but can not use it as a system disk.
	I'd be interested in any information that might allow me to rewrite
the drivers so that I could use it as the startup disk.  Now I'm losing a
lot of my memory to a RAM disk.  The kinds of things I think I need are:
a list of what information has to be passed back and forth to the disk, what
format the information must be in and what the communication speed is. 
Suggestions on how to find these out would also be useful.
	The drive is an Apple Widget 10Mbyte drive packaged in a profile case
with a serial card that says Abus on it.  The names of the drivers associated
with the disk are: .abus, .brenemult and .widgmult.  To read and write to 
the disk .widgmult is called.  It just doesn't work unless the other two
are available.
	I realize that in some senses it might be more reasonable to by
an SCSI port and a new drive, but I'm a poor lowly graduate student and 
do not have the money.  Besides the drive does work and is plenty fast
and big enough for what I use it for.  I also like to spend some of my
spare time hacking and think it would be interesting to try to write a
driver.  Even if I don't succeed I should manage to learn something.
		Thanks ahead of time for the information.

				Jon
gutow@bacall.stanford.edu (preferred over the origin of this message.)
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