From owner-freebsd-hackers@FreeBSD.ORG Tue Aug 14 16:09:17 2007 Return-Path: Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E63C216A419 for ; Tue, 14 Aug 2007 16:09:17 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (lurza.secnetix.de [IPv6:2001:1b20:1:3::1]) by mx1.freebsd.org (Postfix) with ESMTP id 69F5513C46C for ; Tue, 14 Aug 2007 16:09:17 +0000 (UTC) (envelope-from olli@lurza.secnetix.de) Received: from lurza.secnetix.de (idqfmh@localhost [127.0.0.1]) by lurza.secnetix.de (8.13.4/8.13.4) with ESMTP id l7EG9As8094433; Tue, 14 Aug 2007 18:09:16 +0200 (CEST) (envelope-from oliver.fromme@secnetix.de) Received: (from olli@localhost) by lurza.secnetix.de (8.13.4/8.13.1/Submit) id l7EG9A69094432; Tue, 14 Aug 2007 18:09:10 +0200 (CEST) (envelope-from olli) Date: Tue, 14 Aug 2007 18:09:10 +0200 (CEST) Message-Id: <200708141609.l7EG9A69094432@lurza.secnetix.de> From: Oliver Fromme To: freebsd-hackers@FreeBSD.ORG, sven-freebsd@hazejager.nl In-Reply-To: <07081416114656.-1077948560@somehost.domainz.com> X-Newsgroups: list.freebsd-hackers User-Agent: tin/1.8.2-20060425 ("Shillay") (UNIX) (FreeBSD/4.11-STABLE (i386)) MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.1.2 (lurza.secnetix.de [127.0.0.1]); Tue, 14 Aug 2007 18:09:16 +0200 (CEST) Cc: Subject: Re: How to stop attached USB device / send IRP_MN_REMOVE_DEVICE? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: freebsd-hackers@FreeBSD.ORG, sven-freebsd@hazejager.nl List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Aug 2007 16:09:18 -0000 Sven Hazejager wrote: > No, camcontrol does not support this over USB. Windows XP demonstrates it > is technically possible, and I do not believe it is fully safe to > disconnect the drive (even when unmounted), as the drive then is not able > to park its heads, which it DOES do under XP. Every hard disk parks its head when power is switched off. Last time I saw a hard disk which required a command to park its heads was about 20 years ago on a DOS machine. Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead." -- RFC 1925