From owner-freebsd-hackers Mon Jul 28 20:21:39 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id UAA01621 for hackers-outgoing; Mon, 28 Jul 1997 20:21:39 -0700 (PDT) Received: from onyx.atipa.com (user25806@ns.atipa.com [208.128.22.10]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id UAA01606 for ; Mon, 28 Jul 1997 20:21:19 -0700 (PDT) Received: (qmail-queue invoked by uid 1018); 29 Jul 1997 03:23:24 -0000 Date: Mon, 28 Jul 1997 21:23:24 -0600 (MDT) From: FreeBSD Development X-Sender: freebsd@dot.ishiboo.com To: John Kelly cc: hackers@FreeBSD.ORG, Terry Lambert Subject: Re: Sharing interrupts In-Reply-To: <33df45b3.744892@smtp-gw01.ny.us.ibm.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Tue, 29 Jul 1997, John Kelly wrote: > On Mon, 28 Jul 1997 10:38:32 -0700 (MST), Terry Lambert wrote: > > > You can not share interrupts with ISA cards. Period. > You can share interrupts, but not use both SIMULTANEOUSLY. A very good example would be to have LPT1: and a sound card on IRQ7 (both ISA). As long as they have unique base addresses (0x378h and 0x220 for instance), both devices can coexist. You just can't use them at the same time without conflicting. Sharing IRQs is definitely not recommend, but I believe your statement may require a bit more qualifying. Kevin