From owner-freebsd-hackers@FreeBSD.ORG Thu Oct 20 11:04:44 2005 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B051B16A41F for ; Thu, 20 Oct 2005 11:04:44 +0000 (GMT) (envelope-from ticso@cicely12.cicely.de) Received: from ant.bwct.de (ant.bwct.de [85.159.14.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id BE4BC43D88 for ; Thu, 20 Oct 2005 11:04:37 +0000 (GMT) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de ([10.1.1.7]) by ant.bwct.de (8.12.11/8.12.11) with ESMTP id j9KB4WJm022569; Thu, 20 Oct 2005 13:04:33 +0200 (CEST) Received: from cicely12.cicely.de (cicely12.cicely.de [10.1.1.14]) by cicely5.cicely.de (8.13.4/8.13.4) with ESMTP id j9KB4URI012667 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 20 Oct 2005 13:04:30 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.13.4/8.13.3) with ESMTP id j9KB4TUD032023; Thu, 20 Oct 2005 13:04:29 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.13.4/8.13.3/Submit) id j9KB4SfY032022; Thu, 20 Oct 2005 13:04:28 +0200 (CEST) (envelope-from ticso) Date: Thu, 20 Oct 2005 13:04:28 +0200 From: Bernd Walter To: "M. Warner Losh" Message-ID: <20051020110428.GC31913@cicely12.cicely.de> References: <43553287.4030907@pacbell.net> <20051018.223845.67882192.imp@bsdimp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20051018.223845.67882192.imp@bsdimp.com> X-Operating-System: FreeBSD cicely12.cicely.de 5.4-STABLE alpha User-Agent: Mutt/1.5.9i X-Spam-Status: No, score=-5.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.0.4 X-Spam-Report: * -3.3 ALL_TRUSTED Did not pass through any untrusted hosts * -2.6 BAYES_00 BODY: Bayesian spam probability is 0 to 1% * [score: 0.0000] X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on cicely12.cicely.de Cc: freebsd-hackers@freebsd.org, dr2867@pacbell.net Subject: Re: Accessing USB Mass Storage Device X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ticso@cicely.de List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Oct 2005 11:04:44 -0000 On Tue, Oct 18, 2005 at 10:38:45PM -0600, M. Warner Losh wrote: > In message: <43553287.4030907@pacbell.net> > Daniel Rudy writes: > : > : When the umass driver is compiled into the kernel, and one inserts a USB > : mass storage device, how does one access the device descriptors (serial > : number) while the device is listed as a da device? I would perfer to > : have the OS do all the work of accessing the hardware. > > The serial number can be obtained with devifo. However, since cam > doesn't hook into the device tree, mapping da number to umass number > can be tricky in the arbitrary case. > > devinfo -v | grep umass > umass0 pnpinfo vendor=0x054c product=0x014d devclass=0x00 devsubclass=0x00 release=0x0110 sernum="0052450548137984" intclass=0x08 intsubclass= at port=0 interface=0 This is the USB serial number, there might even exist another one at CAM device layer. e.g.: [108]cicely13# camcontrol inquiry -n da -u 1 pass1: Removable Direct Access SCSI-2 device pass1: Serial Number ST92163-2000 pass1: 1.000MB/s transfers [110]cicely13# devinfo -v | grep umass0 umass0 pnpinfo vendor=0x0483 product=0x1307 devclass=0x00 devsubclass=0x00 sernum="4710765066451" interface=0 intclass=0x08 intsubclass=0x06 at port=1 -- B.Walter BWCT http://www.bwct.de bernd@bwct.de info@bwct.de