From owner-freebsd-hackers Wed Jan 4 18:44:24 1995 Return-Path: hackers-owner Received: (from root@localhost) by freefall.cdrom.com (8.6.9/8.6.6) id SAA08175 for hackers-outgoing; Wed, 4 Jan 1995 18:44:24 -0800 Received: from clem.systemsix.com (clem.systemsix.com [198.99.86.131]) by freefall.cdrom.com (8.6.9/8.6.6) with ESMTP id SAA08169 for ; Wed, 4 Jan 1995 18:44:11 -0800 Received: from clem.systemsix.com (localhost [127.0.0.1]) by clem.systemsix.com (8.6.5/8.6.5) with ESMTP id TAA01263; Wed, 4 Jan 1995 19:44:30 -0700 Message-Id: <199501050244.TAA01263@clem.systemsix.com> To: Peter da Silva cc: hackers@freebsd.org, fbsd@clem.systemsix.com Subject: Re: Sounds cards -- take 2 In-reply-to: Your message of "Wed, 04 Jan 1995 16:06:02 CST." <199501042206.QAA12479@bonkers.taronga.com> Date: Wed, 04 Jan 1995 19:44:29 -0700 From: Steve Passe Sender: hackers-owner@freebsd.org Precedence: bulk >> It only accepts IRQ 2 3 4 or 5. I have all of these in use. The 'lack of available INTerrupts' problem can be solved by stealing one from the high half of the bus. One method I have used in the past is to solder a wire to an unused high-side INT pin on a neighboring board and bring the wire across to the INT jumper on the 8-bit card. Another option is to find an unused 16-bit board (junk pile of local surplus house?) and cut off the high-half fingers with enough room for attaching wires. Plug this in the same slot as the 8-bit card and jumper as above. I once found some nice edge-card plugs that fit right into the C/D slot, with single level .025 posts to accept jumpers, this made for a solution that the hardware guys didn't even laugh at... You might have to hack some code, oftentimes a driver won't accept the fact that it can use a high-side INTerrupt. With any of these methods, be CAREFULL, a short can destroy a motherboard! Don't attempt unless you are comfortable with the idea.