From owner-freebsd-acpi@FreeBSD.ORG Tue Jun 22 22:51:50 2004 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 90B0316A4CF for ; Tue, 22 Jun 2004 22:51:50 +0000 (GMT) Received: from root.org (root.org [67.118.192.226]) by mx1.FreeBSD.org (Postfix) with SMTP id 3324D43D5C for ; Tue, 22 Jun 2004 22:51:50 +0000 (GMT) (envelope-from nate@root.org) Received: (qmail 80716 invoked by uid 1000); 22 Jun 2004 22:51:25 -0000 Date: Tue, 22 Jun 2004 15:51:25 -0700 (PDT) From: Nate Lawson To: Dan Cojocar In-Reply-To: <20040617131024.GA7772@Zeus.UBBCluj.Ro> Message-ID: <20040622154616.G79174@root.org> References: <20040603124930.GA58885@Zeus.UBBCluj.Ro> <20040617131024.GA7772@Zeus.UBBCluj.Ro> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-acpi@freebsd.org Subject: Re: hp ze4560 thermal problem X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Jun 2004 22:51:50 -0000 On Thu, 17 Jun 2004, Dan Cojocar wrote: > I made some progress on my one, finaly i can change > hw.acpi.thermal.tz0.active. > My asl contains in EC0 section: in Field (ERAM, ByteAcc, > Lock, Preserve): FAN, 1 and FANL, 16 > I made some search on web and found that FANL is FAN Low, but i'm > not sure :(. > Can somebody explain me this, and what represents 16 there, or > maybe point me to some documentation. You'll have to look at the ACPI spec if you want to decode the field values. In this case, the numbers are field widths and mean FAN is 1 bit, FANL is 16 bits wide. The spec won't tell you what FAN or FANL mean but you can sometimes figure it out from the surrounding AML. I looked at a similar ASL dump and it appears the FAN and FANL values aren't referenced elsewhere. So your fan control needs to be done by something other than ACPI. -Nate