Date: Tue, 14 Aug 2007 18:09:10 +0200 (CEST) From: Oliver Fromme <olli@lurza.secnetix.de> To: freebsd-hackers@FreeBSD.ORG, sven-freebsd@hazejager.nl Subject: Re: How to stop attached USB device / send IRP_MN_REMOVE_DEVICE? Message-ID: <200708141609.l7EG9A69094432@lurza.secnetix.de> In-Reply-To: <07081416114656.-1077948560@somehost.domainz.com>
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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
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