Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752890Ab0HZHJU (ORCPT ); Thu, 26 Aug 2010 03:09:20 -0400 Received: from rhlx01.hs-esslingen.de ([129.143.116.10]:44629 "EHLO rhlx01.hs-esslingen.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752692Ab0HZHJR (ORCPT ); Thu, 26 Aug 2010 03:09:17 -0400 Date: Thu, 26 Aug 2010 09:09:15 +0200 From: Andreas Mohr To: "H. Peter Anvin" Cc: Sebastien Hinderer , Samuel Thibault , Andreas Mohr , Thomas Gleixner , Ingo Molnar , x86@kernel.org, Andrew Morton , Frederic Weisbecker , Len Brown , linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86: EuroBraille/Iris power off Message-ID: <20100826070915.GA19129@rhlx01.hs-esslingen.de> References: <20100825094925.GA3632@pema> <20100825161214.GA15087@rhlx01.hs-esslingen.de> <20100825211257.GA636@pema> <4C7588FB.4050001@zytor.com> <20100825225036.GV4762@const.famille.thibault.fr> <4C75AFFC.5090601@zytor.com> <20100826064549.GA3353@pema> <4C760FEE.1000309@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C760FEE.1000309@zytor.com> X-Priority: none User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1201 Lines: 27 On Wed, Aug 25, 2010 at 11:55:42PM -0700, H. Peter Anvin wrote: > On 08/25/2010 11:45 PM, Sebastien Hinderer wrote: > > 00:00.0 Host bridge: Cyrix Corporation PCI Master > > Flags: bus master, medium devsel, latency 0 > > > > Good grief ... these clowns didn't even program the subsystem ID? Could > you verify with lspci -vv -n? Given the very non-standard environment as compared to a modern PC, perhaps it's a good idea to tend towards establishing a standard "pseudo-DMI" detection method for old-style "PC standard" hardware? (which could support functions for checking a BIOS signature at a defined, well-known BIOS memory location, or functions for a VGA BIOS signature, or detecting certain standardized BIOS flag words). If a PC simply lacks all usual modern methods, then it's us (Linux) who has to provide an utmost reliable fallback mechanism, since that would still be much better than having raw, unverified driver access. Andreas Mohr -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/