From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Cox Subject: Re: [PATCH] libata: rewrite SCSI host scheme to be one per ATA host Date: Wed, 22 Apr 2009 17:27:10 +0100 Message-ID: <20090422172710.0d9fcc6c@lxorguk.ukuu.org.uk> References: <20090422090929.GA14928@havoc.gtf.org> <49EEE225.3010700@garzik.org> <49EF0A92.1070400@panasas.com> <49EF337F.1030804@ngrt.de> <20090422161856.1251f8a0@lxorguk.ukuu.org.uk> <1240414622.3431.14.camel@mulgrave.int.hansenpartnership.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:44262 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751345AbZDVQ1U (ORCPT ); Wed, 22 Apr 2009 12:27:20 -0400 In-Reply-To: <1240414622.3431.14.camel@mulgrave.int.hansenpartnership.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: James Bottomley Cc: Daniela Engert , Boaz Harrosh , Jeff Garzik , linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, LKML , Jens Axboe , Tejun Heo > > It's a long time ago since I tested it but my 5 CD changer was correctly > > supported by libata (or more accurately by sr...). > > Well, sr supports the discovered CD/DVD; ch is the actual changer > manager. Usually ch attaches to one LUN and sr attaches to another. I get 5 LUNS and the hardware looks after the rest - no changer manager needed. Early versions of the gnome folks CD probing stuff did give it a bit of a fit as the firmware clearly didn't cache all the state that the cd mangler asked for.