From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754161AbYJCTnU (ORCPT ); Fri, 3 Oct 2008 15:43:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754084AbYJCTmd (ORCPT ); Fri, 3 Oct 2008 15:42:33 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:58317 "EHLO UNKNOWN" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752880AbYJCTmd (ORCPT ); Fri, 3 Oct 2008 15:42:33 -0400 Date: Fri, 3 Oct 2008 21:40:40 +0200 From: Pavel Machek To: "Jeffrey W. Baker" Cc: Matthew Garrett , linux-kernel@vger.kernel.org Subject: Re: Put unused PCI devices in D3 Message-ID: <20081003194040.GC1497@ucw.cz> References: <1222719064.19236.129.camel@squeak.gghcwest.com> <20080930000923.GA29775@srcf.ucam.org> <1222736147.21516.12.camel@stinkpad> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1222736147.21516.12.camel@stinkpad> 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! > > > * If the device is a bridge or hub with no downstream device > > > > Potential problems with hotplugging? But sure, this kind of thing is > > being implemented in USB and SCSI. > > > > > * Whenever userspace requests D3 via sysfs > > > > This functionality was explicitly removed a few years back. > > I sure would like to have it back, if only just for experimentation. Feel free to find it and reapply for your experiments. The file was in sysfs was called power/state, just grep git logs for that. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html