From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: [linux-pm] Power management for SCSI Date: Fri, 22 Aug 2008 12:52:46 +0200 Message-ID: <20080822105246.GB3482@elf.ucw.cz> References: <200808191533.15244.oneukum@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org To: Alan Stern Cc: Oliver Neukum , linux-pm@lists.linux-foundation.org, James.Bottomley@hansenpartnership.com, Linux-pm mailing list , kernel list , teheo@novell.com List-Id: linux-pm@vger.kernel.org Hi! > > - suspending has side effects > > I'm not sure what you mean by that. Suspension always has side effects > of one kind or another. > > > Suspension in USB has always side effects. That's not true for other > > subsystems. > > Name one. At the very least, suspending a device means you can't use > it again without first calling the driver's resume method. That's a > side effect. IDE, actually. I don't think it is relevant, but you can do hdparm -y, and it will automatically spin up when you try to talk to it next time. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html