From owner-freebsd-hackers Thu May 7 08:10:55 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA29154 for freebsd-hackers-outgoing; Thu, 7 May 1998 08:10:55 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from ns.mt.sri.com (sri-gw.MT.net [206.127.105.141]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA29143 for ; Thu, 7 May 1998 08:10:48 -0700 (PDT) (envelope-from nate@mt.sri.com) Received: from mt.sri.com (rocky.mt.sri.com [206.127.76.100]) by ns.mt.sri.com (8.8.8/8.8.8) with SMTP id JAA01284; Thu, 7 May 1998 09:10:46 -0600 (MDT) (envelope-from nate@rocky.mt.sri.com) Received: by mt.sri.com (SMI-8.6/SMI-SVR4) id JAA09454; Thu, 7 May 1998 09:10:44 -0600 Date: Thu, 7 May 1998 09:10:44 -0600 Message-Id: <199805071510.JAA09454@mt.sri.com> From: Nate Williams MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Jim Carroll Cc: Warner Losh , Nate Williams , freebsd-hackers@FreeBSD.ORG Subject: Re: ISA-PnP w\o BIOS support? In-Reply-To: References: <199805070421.WAA16545@harmony.village.org> X-Mailer: VM 6.29 under 19.15 XEmacs Lucid Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > One of the hardest things to do right now with the pccard code in > > FreeBSD -current is to figure out what interrupts you have available. > > Amen to that. > > I had an idea for quick little utility to help solve this. If you could > walk the hardware interrupt vector list, you could display which interrupts > had valid drivers waiting to handle them. This would at least display which > interrupts were in use. You could then decide where to put the pccard > driver (or any other card that needs a free IRQ). The code does that now to a point, except that unfortunately an interrupt may be 'free' as far as the FreeBSD kernel is concerned (no drivers allocated), but there may be a piece of (unconfigured/unknown) hardware that is holding onto an interrupt so it's not really free. Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message