From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754593AbYANNHG (ORCPT ); Mon, 14 Jan 2008 08:07:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753731AbYANNGk (ORCPT ); Mon, 14 Jan 2008 08:06:40 -0500 Received: from out3.smtp.messagingengine.com ([66.111.4.27]:39661 "EHLO out3.smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751193AbYANNGi (ORCPT ); Mon, 14 Jan 2008 08:06:38 -0500 X-Sasl-enc: 79zPHSFPdN0Au9WW5eLv4NvJ+BZzpkX9z2Zt6El0tGso 1200315996 Date: Mon, 14 Jan 2008 11:06:33 -0200 From: Henrique de Moraes Holschuh To: Matthew Garrett Cc: Pavel Machek , Len Brown , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Lenovo ThinkPads need acpi_osi="Linux" Message-ID: <20080114130633.GD20222@khazad-dum.debian.net> References: <20080112022348.GC27524@khazad-dum.debian.net> <200801120416.08631.lenb@kernel.org> <20080113165801.GA4132@ucw.cz> <20080113234129.GE10693@khazad-dum.debian.net> <20080114003553.GA1698@srcf.ucam.org> <20080114015009.GA2317@srcf.ucam.org> <20080114015718.GA15124@khazad-dum.debian.net> <20080114020352.GA2502@srcf.ucam.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080114020352.GA2502@srcf.ucam.org> X-GPG-Fingerprint: 1024D/1CDB0FE3 5422 5C61 F6B7 06FB 7E04 3738 EE25 DE3F 1CDB 0FE3 User-Agent: Mutt/1.5.17 (2007-12-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 14 Jan 2008, Matthew Garrett wrote: > Userspace is in a better position to make this determination. Of course, That's fine with me. > this also means not passing the Linux OSI to the firmware. Our hardware > interaction is sufficiently in flux that any attempt to work around it > in the firmware is just going to lead to bizarre breakage down the road. The Linux OSI string does more. I just found out that it also drives the MUTE key behaviour (and you want the behaviour *with* the Linux OSI string loaded). Some of the behaviours are actually linux-version agnostic. E.g. we'll always prefer that the Mute key send a KEY_MUTE event over the keyboard controller *without* touching the hardware (which is what it does if the Linux OSI string is *present*) in ThinkPads where there is no firmware-specific mixer hardware (i.e. the T61 and probably X61). For such uses, the OSI string is fine. -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh