From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: acer-wmi is unnecessarily loaded on a Lenovo Ideapad S12 Date: Fri, 4 Mar 2011 23:59:27 +0000 Message-ID: <20110304235927.GA31464@srcf.ucam.org> References: <4D1B53FB020000230002621B@novprvlin0050.provo.novell.com> <20110103204910.GA4223@srcf.ucam.org> <4D6EA053020000230002943D@novprvlin0050.provo.novell.com> <201103022109.51600.carlos@strangeworlds.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from cavan.codon.org.uk ([93.93.128.6]:56462 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751922Ab1CDX7q (ORCPT ); Fri, 4 Mar 2011 18:59:46 -0500 Content-Disposition: inline In-Reply-To: <201103022109.51600.carlos@strangeworlds.co.uk> Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: Carlos Corbacho Cc: Joey Lee , vpivaini@cs.helsinki.fi, dwmw2@infradead.org, platform-driver-x86@vger.kernel.org Looking at this, it seems that the affected machines have AMW0_GUID1 but none of the WMID GUIDs. By the looks of things this is just a semi-standardised way to trigger an SMM trap and communicate with the firmware. This makes things tricker to track down (because once we're in SMM we have no way of knowing what the firwmare's doing), but potentially there's some method to identify the machine here. Carlos, do we have any idea what the inputs and outputs for this method mean other than what's in AMW0_set_capabilities()? -- Matthew Garrett | mjg59@srcf.ucam.org