Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758522AbYHVU0A (ORCPT ); Fri, 22 Aug 2008 16:26:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758504AbYHVUZI (ORCPT ); Fri, 22 Aug 2008 16:25:08 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:52692 "EHLO gprs189-60.eurotel.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758442AbYHVUZH (ORCPT ); Fri, 22 Aug 2008 16:25:07 -0400 Date: Fri, 22 Aug 2008 12:56:27 +0200 From: Pavel Machek To: oneukum@suse.de, linux-pm@lists.linux-foundation.org, James.Bottomley@hansenpartnership.com, linux-kernel@vger.kernel.org, teheo@novell.com, stefanr@s5r6.in-berlin.de Cc: Martin.Leisner@xerox.com Subject: autosuspend for SCSI devices Message-ID: <20080822105626.GA9475@elf.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 805 Lines: 22 From: Alan Stern Add support for autosuspend/autoresume of the SCSI devices. Lowlevel driver can use it to spin the disk down... and it is neccessary step for powering down the controllers. Spinning down the disk is useful - saves ~0.5W here, and it is last major thing we can do to save power on some small machines like Kohjinsha subnotebooks. Signed-off-by: Pavel Machek -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/