From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753892AbZEULgh (ORCPT ); Thu, 21 May 2009 07:36:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752418AbZEULg3 (ORCPT ); Thu, 21 May 2009 07:36:29 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:56510 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751895AbZEULg2 (ORCPT ); Thu, 21 May 2009 07:36:28 -0400 Date: Thu, 21 May 2009 13:36:18 +0200 From: Pavel Machek To: =?iso-8859-1?Q?=C9ric?= Piel Cc: Andrew Morton , LKML Subject: Re: [PATCH 2/4] lis3: remove automatic shutdown of the device Message-ID: <20090521113618.GF2637@elf.ucw.cz> References: <4A151E9F.1080405@tremplin-utc.net> <4A151F52.3050908@tremplin-utc.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A151F52.3050908@tremplin-utc.net> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! > After measurement on my laptop, it seems that turning off the device > does not bring any energy saving (within 0.1W precision). So let's keep > the device always on. It simplifies the code, and it avoids the problem > of reading a wrong value sometimes just after turning the device on. Well, 0.1W is still quite much for cellphone etc... but as we do not have any such small users in the tree, I guess this can go in... -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html