From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261905AbVCANtY (ORCPT ); Tue, 1 Mar 2005 08:49:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261907AbVCANtY (ORCPT ); Tue, 1 Mar 2005 08:49:24 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:52383 "EHLO atrey.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id S261905AbVCANtW (ORCPT ); Tue, 1 Mar 2005 08:49:22 -0500 Date: Mon, 21 Feb 2005 00:14:20 +0100 From: Pavel Machek To: WareKala Cc: linux-kernel@vger.kernel.org Subject: Re: Sysfs, PCI-devices and power management Message-ID: <20050220231420.GA1444@openzaurus.ucw.cz> References: <1108819774.11821.12.camel@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1108819774.11821.12.camel@localhost> User-Agent: Mutt/1.3.27i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > I don't know if this is the "right place(TM)" to ask about this, and if > it isn't, I apologize. But the fact is that I haven't found any help > from anywhere else and I can't learn enough without asking. So, the > situation is like this: I am using a laptop and want to minimize the > power consumption by shutting down unneeded components. Under windozer a > program called Battery Doubler does the same by for example shutting > down not-needed PCI devices. I too, tried to shut down certain devices > by doing "echo 3 > /sys/devices/pci*/*0a*/power/state", but that didn't > work. state was still a zero. So, I then This is called runtime power managment; it still needs to be implemented. -- 64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms