Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 6 Mar 2003 18:01:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 6 Mar 2003 18:01:20 -0500 Received: from [195.39.17.254] ([195.39.17.254]:12804 "EHLO Elf.ucw.cz") by vger.kernel.org with ESMTP id ; Thu, 6 Mar 2003 18:00:29 -0500 Date: Thu, 6 Mar 2003 21:42:30 +0100 From: Pavel Machek To: Dominik Brodowski Cc: Pavel Machek , davej@suse.de, John Clemens , cpufreq@www.linux.org.uk, kernel list Subject: Re: [PATCH][RFC] Re: cpufreq: allow user to specify voltage Message-ID: <20030306204230.GC276@elf.ucw.cz> References: <20030225190949.GM12028@atrey.karlin.mff.cuni.cz> <20030225193341.GA19556@atrey.karlin.mff.cuni.cz> <20030228211638.GA888@brodo.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030228211638.GA888@brodo.de> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.3i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1148 Lines: 29 Hi! > And for powernow-k7.c , the file > > /sys/devices/sys/cpu0/scaling_setvoltage > > should show the current voltage for the current speed (scaling_setspeed). > "echoing" a different value (must be lower than the current voltage) changes > the voltage for this frequency only. However, this override is "static" so > that if you switch to a different frequency in the meantime but get back to > the one you wanted to override the voltage setting for, the new > user-specified value is remembered. > > This is untested (don't have a powernow-k7-capable notebook), so handle with > care. Thanx, it works. I'd drop "can't set higher voltage" limitation [hardware protects you, anyway, and if you make it so low your system is unstable you can no longer fix it without reboot], but that's minor. Pavel -- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] - 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/