From owner-freebsd-hackers  Sun Oct 19 18:40:55 1997
Return-Path: <owner-freebsd-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id SAA16255
          for hackers-outgoing; Sun, 19 Oct 1997 18:40:55 -0700 (PDT)
          (envelope-from owner-freebsd-hackers)
Received: from word.smith.net.au (vh1.gsoft.com.au [203.38.152.122])
          by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id SAA16249
          for <hackers@freebsd.org>; Sun, 19 Oct 1997 18:40:47 -0700 (PDT)
          (envelope-from mike@word.smith.net.au)
Received: from word.smith.net.au (localhost.gsoft.com.au [127.0.0.1])
	by word.smith.net.au (8.8.7/8.8.5) with ESMTP id LAA00451;
	Mon, 20 Oct 1997 11:07:31 +0930 (CST)
Message-Id: <199710200137.LAA00451@word.smith.net.au>
X-Mailer: exmh version 2.0zeta 7/24/97
To: Dan Walters <hannibal@cyberstation.net>
cc: hackers@freebsd.org
Subject: Re: ATAPI CD-RW documentation... 
In-reply-to: Your message of "Sun, 19 Oct 1997 17:42:46 EST."
             <Pine.BSI.3.96.971019170816.20632A-100000@citrine.cyberstation.net> 
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Mon, 20 Oct 1997 11:07:30 +0930
From: Mike Smith <mike@smith.net.au>
Sender: owner-freebsd-hackers@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

> I just ordered a EIDE CD-RW (all the 4x models I could find were EIDE, and
> if hard drives are any indication I bet most CD-RWs will probably be EIDE
> soon) and of course would like to use it under FreeBSD.  I don't even see
> anything looking like support for it under Linux, which really surprised
> me.  I'd be interested in at least attempting to implement some support
> for it.  Can someone tell me where I could get my hands on some sort of
> programmer's guide or manual for these?  Would the specifics for a CD-RW
> actually be covered in the ATAPI specs from WD?

What you have basically bought is a SCSI device with an IDE connector.

If you're serious about hacking on ATAPI support for FreeBSD, you will 
want to grab the relevant specifications documents (I've got most of 
them at ftp://ftp.smith.net.au/doc/ATAPI,CAM) and Justin Gibbs' CAM work
(from ftp://ftp.freebsd.org/pub/FreeBSD/incoming/cam-*).

Kenneth Merry and I were discussing this the last week or so; I can 
send you various excerpts and some useful diagrams that came out of 
that if you're interested.

mike