From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932214AbVLNJHS (ORCPT ); Wed, 14 Dec 2005 04:07:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932216AbVLNJHS (ORCPT ); Wed, 14 Dec 2005 04:07:18 -0500 Received: from sd291.sivit.org ([194.146.225.122]:53253 "EHLO sd291.sivit.org") by vger.kernel.org with ESMTP id S932214AbVLNJHQ (ORCPT ); Wed, 14 Dec 2005 04:07:16 -0500 Subject: Re: [PATCH] Sonypi: convert to the new platform device interface From: Stelian Pop To: Andrew Morton Cc: "Yu, Luming" , dtor_core@ameritech.net, linux-kernel@vger.kernel.org, malattia@linux.it, len.brown@intel.com In-Reply-To: <20051213215711.73a79800.akpm@osdl.org> References: <3ACA40606221794F80A5670F0AF15F840A6A9A2D@pdsmsx403> <20051213215711.73a79800.akpm@osdl.org> Content-Type: text/plain; charset=ISO-8859-15 Date: Wed, 14 Dec 2005 10:07:12 +0100 Message-Id: <1134551232.4715.13.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.4.1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Le mardi 13 décembre 2005 à 21:57 -0800, Andrew Morton a écrit : > "Yu, Luming" wrote: > > > > But, from my understanding, sonypi.c should be cleanly implemented in ACPI. > > > > heh, good luck. I've spent a decent chunk of this week making Linux suck > less than 100% on a new Vaio, Am currently at 95%. Poking things into > sonypi's /proc/acpi/brightness this isn't sonypi's but sony_acpi's /proc/acpi/brightness > is the only way known of controlling the > screen brightness. One of the mysterious and undocumented ACPI calls will > do it, but we don't know which, nor how. For the brightness thingy, this is known: it's the SBRT/GBRT functions of the "SNC" ACPI device (and this seems to work for all Sony Vaios except the ones using nvidia graphic cards, where you have to use smartdimmer instead) Yu has somewhat integrated sony_acpi related functions in acpi_hotkey in a testing patch (http://bugzilla.kernel.org/show_bug.cgi?id=4876) if you like the proposed way to do it. Based on the existence of that patch, the integration of sony_acpi into the offical kernel has been rejected by ACPI people. /me still wonders how hotkey.c got integrated into the kernel in its current form... -- Stelian Pop