Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754838Ab1EDP30 (ORCPT ); Wed, 4 May 2011 11:29:26 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:51694 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754295Ab1EDP3Y (ORCPT ); Wed, 4 May 2011 11:29:24 -0400 Date: Wed, 4 May 2011 16:29:54 +0100 From: Alan Cox To: Vivien Didelot Cc: linux-kernel , Jonas Fonseca , platform-driver-x86 , linux-serial , lm-sensors Subject: Re: [RFC 1/5] platform-drivers-x86: add support for Technologic Systems TS-5xxx detection Message-ID: <20110504162954.7ecf5b5e@lxorguk.ukuu.org.uk> In-Reply-To: <1304520382-sup-3361@sfl> References: <1304115712-5299-1-git-send-email-vivien.didelot@savoirfairelinux.com> <1304115712-5299-2-git-send-email-vivien.didelot@savoirfairelinux.com> <20110430110705.5ca3376b@lxorguk.ukuu.org.uk> <1304520382-sup-3361@sfl> X-Mailer: Claws Mail 3.7.8 (GTK+ 2.22.0; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 848 Lines: 19 > It is possible to make a BIOS call (Int 15h / Function B000h) to get > board information, like the manufacturer ("TS"). It should be a safer > way to check if we are on a Technologic Systems board. a intcall(0x15, > &ireg, &oreg) should do the trick to check the platform, before checking > the SBC ID. What do you think? And that goes to 'How you do yo know it's safe to call INT 15 0xB000 - especially as we are in 32bit mode and the BIOS is 16bit so you have to call it very early meaning its a great way to make something else not boot. Does the board not support anything sane like DMI ? Alan -- 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/