Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262134AbUK3Qa7 (ORCPT ); Tue, 30 Nov 2004 11:30:59 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262186AbUK3Qa6 (ORCPT ); Tue, 30 Nov 2004 11:30:58 -0500 Received: from smtp09.auna.com ([62.81.186.19]:16518 "EHLO smtp09.retemail.es") by vger.kernel.org with ESMTP id S262183AbUK3QaA convert rfc822-to-8bit (ORCPT ); Tue, 30 Nov 2004 11:30:00 -0500 Date: Tue, 30 Nov 2004 16:29:59 +0000 From: "J.A. Magallon" Subject: Re: cdrecord dev=ATA cannont scanbus as non-root To: Jens Axboe Cc: "J.A. Magallon" , Jan Engelhardt , Lista Linux-Kernel References: <1101763996l.13519l.0l@werewolf.able.es> <1101765555l.13519l.1l@werewolf.able.es> <20041130071638.GC10450@suse.de> In-Reply-To: <20041130071638.GC10450@suse.de> (from axboe@suse.de on Tue Nov 30 08:16:39 2004) X-Mailer: Balsa 2.2.6 Message-Id: <1101832199l.9494l.0l@werewolf.able.es> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2073 Lines: 52 On 2004.11.30, Jens Axboe wrote: > On Mon, Nov 29 2004, J.A. Magallon wrote: > > dev=ATAPI uses ide-scsi interface, through /dev/sgX. And: > > > > > scsibus: -1 target: -1 lun: -1 > > > Warning: Using ATA Packet interface. > > > Warning: The related Linux kernel interface code seems to be unmaintained. > > > Warning: There is absolutely NO DMA, operations thus are slow. > > > > dev=ATA uses direct IDE burning. Try that as root. In my box, as root: > > Oh no, not this again... Please check the facts: the ATAPI method uses > the SG_IO ioctl, which is direct-to-device. It does _not_ go through > /dev/sgX, unless you actually give /dev/sgX as the device name. It has > nothing to do with ide-scsi. Period. > > ATA uses CDROM_SEND_PACKET. This has nothing to do with direct IDE > burning, it's a crippled interface from the CDROM layer that should not > be used for anything. scsi-linux-ata.c should be ripped from the > cdrecord sources, or at least cdrecord should _never_ select that > transport for 2.6 kernels. For 2.4 you are far better off using > ide-scsi. > > > The scan through ATA lasts much less than with ATAPI, and you can burn with > > dev=ATA:1,0,0 or dev=/dev/burner, which is the new recommended way. > > No! ATAPI is the recommended way. > > -- > Jens Axboe > > - > 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/ > > -- J.A. Magallon \ Software is like sex: werewolf!able!es \ It's better when it's free Mandrakelinux release 10.2 (Cooker) for i586 Linux 2.6.10-rc2-jam3 (gcc 3.4.1 (Mandrakelinux 10.1 3.4.1-4mdk)) #1 - 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/