Return to BSD News archive
Newsgroups: comp.os.386bsd.questions
Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!agate!howland.reston.ans.net!newsserver.jvnc.net!gmd.de!mururoa!veit
From: veit@mururoa.gmd.de (Holger Veit)
Subject: Re: Mitsumi CD-Rom device driver anyone
Message-ID: <1993Jun9.113449.26303@gmd.de>
Sender: veit@mururoa (Holger Veit)
Nntp-Posting-Host: mururoa
Organization: GMD, Sankt Augustin, Germany
References: <1993Jun08.163525.28509@fac.com>
Date: Wed, 9 Jun 1993 11:34:49 GMT
Lines: 50
In article <1993Jun08.163525.28509@fac.com>, mooreb@fac.com (Brian Moore) writes:
|> Has anyone written a device driver for the Mitsumi CD-Rom? They are
|> the cheap ones (< $200US) that come with a special interface card.
|> Correct me if I'm wrong, but it isn't SCSI. They are popular at the
|> PC shows around here, so I would think there's enough interest in
|> them to get a driver working. If no one has one, I might try to
|> write the device driver myself. There's a first time for everything.
|>
|> Does this mean I'll have to get involved in the Great Major Number
|> Debate? :-)
Well, about the latter, this is true. I'll ask the patchkit coordinator
here to reserve a major number for the following device:
Names: /dev/mcd0 /dev/rmcd0
Type: CD ROM driver for Mitsumi LU0005S
Major Number: ???
I am nearly finished reverse-engineering *) the MTMCDE.SYS DOS driver, and
believe I understand enough of the internal command codes to proceed with
implementing such a driver for 386bsd.
There is a simple driver available for Linux, but it does not very much
more then just providing the functionality to read a specified sector
(no audio/ioctls).
Brian, if you are interested in writing such a driver or assisting, we could
get in closer contact.
Holger
*) It seems to be nearly impossible to contact Mitsumi to get any detailed
programming information on these drives. If someone from this company reads this,
the address in the signature is sufficient to send me specs. Sorry if I was
forced to dig around in probably proprietary object files.
|> --
|> Brian Moore, mooreb@fac.com | I wrote up a nice script to truncate all News&
|> First Albany Corp. Sysadmin | Mail sigs that are greater than 4 lines long.
|> standard disclaimers apply | It is still in beta testing due to an off-by-
--
Dr. Holger Veit | INTERNET: Holger.Veit@gmd.de
| | / GMD-SET German National Research | Phone: (+49) 2241 14 2448
|__| / Center for Computer Science | Fax: (+49) 2241 14 2342
| | / P.O. Box 13 16 | Three lines Signature space
| |/ Schloss Birlinghoven | available for rent. Nearly
DW-5205 St. Augustin, Germany | unused, good conditions