Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932242AbWA3MXy (ORCPT ); Mon, 30 Jan 2006 07:23:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932243AbWA3MXy (ORCPT ); Mon, 30 Jan 2006 07:23:54 -0500 Received: from pentafluge.infradead.org ([213.146.154.40]:38847 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S932242AbWA3MXx (ORCPT ); Mon, 30 Jan 2006 07:23:53 -0500 Date: Mon, 30 Jan 2006 12:23:49 +0000 From: Christoph Hellwig To: Joerg Schilling , jengelh@linux01.gwdg.de, James@superbug.co.uk, mrmacman_g4@mac.com, linux-kernel@vger.kernel.org, acahalan@gmail.com, "unlisted-recipients:; "@pop3.mail.demon.net Subject: Re: CD writing in future Linux (stirring up a hornets' nest) Message-ID: <20060130122349.GA13871@infradead.org> Mail-Followup-To: Christoph Hellwig , Joerg Schilling , jengelh@linux01.gwdg.de, James@superbug.co.uk, mrmacman_g4@mac.com, linux-kernel@vger.kernel.org, acahalan@gmail.com, "unlisted-recipients:; "@pop3.mail.demon.net References: <8614E822-9ED1-4CB1-B8F0-7571D1A7767E@mac.com> <43D7B1E7.nailDFJ9MUZ5G@burner> <20060125230850.GA2137@merlin.emma.line.org> <43D8C04F.nailE1C2X9KNC@burner> <20060126161028.GA8099@suse.cz> <43DA2E79.nailFM911AZXH@burner> <43DA4DDA.7070509@superbug.co.uk> <43DDFBFF.nail16Z3N3C0M@burner> <20060130120408.GA8436@merlin.emma.line.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060130120408.GA8436@merlin.emma.line.org> User-Agent: Mutt/1.4.2.1i X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 911 Lines: 17 On Mon, Jan 30, 2006 at 01:04:08PM +0100, Matthias Andree wrote: > Why is it a *kernel* task to invent SCSI identifier for a non-SCSI > transport that does not have such identifiers, in addition to the device > name? libscg is already doing it for /dev/hd* and /dev/pg*. > How about USB or Firewire or SATA? Do they have ID or LUN? Nothing but SPI (parallel scsi) has a target id. Everything that broadly falls under SAM has luns. Because SPI is dying transport the scsi midlayer will get rid of having a mandatory target id mid-term. Relying on the target id to have any useful meaning is dangerous, it doesn't have a really useful meaning on anything but SPI. - 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/