From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominik Brodowski Subject: Re: Changing temperature trip points Date: Sun, 3 Nov 2002 21:30:10 +0100 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20021103213010.A1665@brodo.de> References: <000001c28231$b7cae110$c200a8c0@pikachu> <20021102171756.GD1983@elf.ucw.cz> <1036288754.2971.1.camel@localhost.localdomain> <20021103195616.GB27271@elf.ucw.cz> <20021103211607.A1555@brodo.de> <20021103202130.GB22668@atrey.karlin.mff.cuni.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20021103202130.GB22668-jyMamyUUXNJG4ohzP4jBZS1Fcj925eT/@public.gmane.org>; from pavel-+ZI9xUNit7I@public.gmane.org on Sun, Nov 03, 2002 at 09:21:30PM +0100 Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: Pavel Machek Cc: Edmund Rhudy , acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi! On Sun, Nov 03, 2002 at 09:21:30PM +0100, Pavel Machek wrote: > > Hi! > > > Actually, I think the problem is something else: The BIOS is supposed to > > generate ACPI events whenever these trip points are reached. So if you > > change these values (by patching the DSDT, by "hardwiring" it into the > > kernel) you need to use the polling method. Then ACPI will compare the > > current temperature to the specified temperatures with a specified > > frequency. Any chance you can try whether my assuption is correct? > > > YOU are right that I need to turn the polling on. > > But I'm sure fan is done by bios on my machine. Yes, that might well be - the fan on my machine turns on and off both when it thinks it should, and when ACPI tells it should *weird* Actually, I think any write into trip_points should automatically enable the polling mode. Will submit a patch which does that later. Do 3 seconds sound sane? Dominik ------------------------------------------------------- This SF.net email is sponsored by: ApacheCon, November 18-21 in Las Vegas (supported by COMDEX), the only Apache event to be fully supported by the ASF. http://www.apachecon.com