From owner-freebsd-hackers Mon Dec 10 22:37:53 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from falcon.prod.itd.earthlink.net (falcon.mail.pas.earthlink.net [207.217.120.74]) by hub.freebsd.org (Postfix) with ESMTP id 147D837B416; Mon, 10 Dec 2001 22:37:52 -0800 (PST) Received: from pool0031.cvx40-bradley.dialup.earthlink.net ([216.244.42.31] helo=mindspring.com) by falcon.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16DgXw-00070Q-00; Mon, 10 Dec 2001 22:37:44 -0800 Message-ID: <3C15A9C0.4E2901C3@mindspring.com> Date: Mon, 10 Dec 2001 22:37:52 -0800 From: Terry Lambert X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Bernd Walter Cc: Danny Braniss , Mike Smith , freebsd-hackers@FreeBSD.ORG Subject: Re: irq References: <200112101752.fBAHqMV01179@mass.dis.org> <20011210215905.E11774@cicely8.cicely.de> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Bernd Walter wrote: > A PCI slot has 4 irq lines named INTA to INTD. Yes. > On PCs all slots share the same 4 physical irqs and the lines are > hardwired on the board in alternating order to each slot. On newer motherboards, post the Intel SErver Products Division PCI motherboards, from a year or so after initial release. > If you want cards not to share irqs you have to swap slots until you > get what you want - you can't enforce it with software. You can do it in software, but we don't, so moving the cards around is a valid workaround. PS: Slot 5, if there is one, is generally INT A, as well. -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message