Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 2 Jan 2002 15:49:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 2 Jan 2002 15:49:39 -0500 Received: from quark.didntduck.org ([216.43.55.190]:48136 "EHLO quark.didntduck.org") by vger.kernel.org with ESMTP id ; Wed, 2 Jan 2002 15:48:25 -0500 Message-ID: <3C3371B3.F061BB52@didntduck.org> Date: Wed, 02 Jan 2002 15:46:43 -0500 From: Brian Gerst X-Mailer: Mozilla 4.76 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: esr@thyrsus.com CC: Linux Kernel List Subject: Re: ISA slot detection on PCI systems? In-Reply-To: <20020102151539.A14925@thyrsus.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org "Eric S. Raymond" wrote: > > Is there any way to safely probe a PCI motherboard to determine whether > or not it has ISA cards present, or ISA card slots? > > Note: the question is *not* about a probe for whether the board has an ISA > bridge, but a probe for the presence of actual ISA cards (or slots). > > (Yes, I'm working on a smart autoconfigurator. It's a development of > Giacomo Catenazzi's code, but able to use the CML2 deduction engine.) The problem with ISA is that it is too simple of a bus, and is virtually transparent. It has no auto-configuration/detection standard (except ISAPNP). Each card is detected in a different way, and you have the problem with probing unknown ports causing potential crashes. Detecting the ISA slots is impossible, except possibly from the BIOS. -- Brian Gerst - 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/