Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932378AbWBSJ1W (ORCPT ); Sun, 19 Feb 2006 04:27:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932381AbWBSJ1V (ORCPT ); Sun, 19 Feb 2006 04:27:21 -0500 Received: from mail.gmx.de ([213.165.64.20]:44433 "HELO mail.gmx.net") by vger.kernel.org with SMTP id S932378AbWBSJ1V (ORCPT ); Sun, 19 Feb 2006 04:27:21 -0500 X-Authenticated: #428038 Date: Sun, 19 Feb 2006 10:27:13 +0100 From: Matthias Andree To: "D. Hazelton" Cc: Gene Heskett , Christoph Hellwig , Bill Davidsen , Daniel Barkalow , Greg KH , Nix , Jens Axboe , Joerg Schilling , linux-kernel@vger.kernel.org Subject: Re: CD writing in future Linux (stirring up a hornets' nest) Message-ID: <20060219092713.GB21626@merlin.emma.line.org> Mail-Followup-To: "D. Hazelton" , Gene Heskett , Christoph Hellwig , Bill Davidsen , Daniel Barkalow , Greg KH , Nix , Jens Axboe , Joerg Schilling , linux-kernel@vger.kernel.org References: <878xt3rfjc.fsf@amaterasu.srvr.nix> <20060218120617.GA911@infradead.org> <200602181215.30277.gene.heskett@verizon.net> <200602181941.40093.dhazelton@enter.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200602181941.40093.dhazelton@enter.net> X-PGP-Key: http://home.pages.de/~mandree/keys/GPGKEY.asc User-Agent: Mutt/1.5.11 X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2353 Lines: 62 On Sat, 18 Feb 2006, D. Hazelton wrote: > Well, in this case I'm actually trying to work with Joerg to produce a patch > that unifies the ATAPI and SCSI busses inside his program. This patch already exists, see: It's a proof of concept and needs to be polished (I'll look into that again in March). Only it still probes all /dev/hd and /dev/sg and /dev/pg in a dumb way, rather than looking at sysfs or reading through /dev/. > I've seen the "MRW" stuff in some of the specs, but had to check the net to > find out what it was. MRW is the Mt. Rainier format - basic support was added > by Jens back in 2.4.19 according to the archives. > (http://www.ussg.iu.edu/hypermail/linux/kernel/0203.2/1214.html) > > I'm not positive, but the "Can Read RAM" line might refer to DVD-RAM type > discs That's probably not it, since there's a separate DVD-RAM line here: CD-ROM information, Id: cdrom.c 3.20 2003/12/17 drive name: hdd hdc sr0 drive speed: 40 48 1 drive # of slots: 1 1 1 Can close tray: 1 1 1 Can open tray: 1 1 1 Can lock tray: 1 1 1 Can change speed: 1 1 0 Can select disk: 0 0 0 Can read multisession: 1 1 1 Can read MCN: 1 1 1 Reports media changed: 1 1 1 Can play audio: 1 1 1 Can write CD-R: 1 1 0 Can write CD-RW: 1 1 0 Can read DVD: 0 1 0 Can write DVD-R: 0 1 0 Can write DVD-RAM: 0 1 0 Can read MRW: 1 1 1 Can write MRW: 1 1 1 Can write RAM: 1 1 1 hdd = Plextor PX-W4824TA hdc = NEC ND-4550A sr0 = Plextor PX-32TS (Now NEC only needs to teach their drives to be more error tolerant when reading and adjust their read speed to the actual sustained transfer rate as Toshiba drives have been doing for ages...) -- Matthias Andree - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/