From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nate Lawson Subject: IBM R40 FFixedHW register? Date: Tue, 21 Oct 2003 15:39:55 -0700 (PDT) Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20031021153556.B56816@root.org> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-acpi@vger.kernel.org I'm testing out my new cpu driver for FreeBSD and came across an interesting case in supporting Px states. They work great on several laptops but the R40 can't set Px states. I looked at the ASL and found that the control/status register pair is FFixedHW. Return (Package (0x02) { ResourceTemplate () { Register (FFixedHW, 0x40, 0x00, 0x0000000000000199) }, ResourceTemplate () { Register (FFixedHW, 0x10, 0x00, 0x0000000000000198) } } I guess I have to find the datasheet for that model to figure out how to access those registers. Anyone come across this before? What space are those actually in (IO, Memory, ??). The register widths are also strange (64 and 16 bits). Thanks, Nate ------------------------------------------------------- This SF.net email is sponsored by OSDN developer relations Here's your chance to show off your extensive product knowledge We want to know what you know. Tell us and you have a chance to win $100 http://www.zoomerang.com/survey.zgi?HRPT1X3RYQNC5V4MLNSV3E54