From owner-freebsd-hackers  Wed May 24 10:33:51 1995
Return-Path: hackers-owner
Received: (from majordom@localhost)
          by freefall.cdrom.com (8.6.10/8.6.6) id KAA16852
          for hackers-outgoing; Wed, 24 May 1995 10:33:51 -0700
Received: from dg-rtp.dg.com (dg-rtp.rtp.dg.com [128.222.1.2])
          by freefall.cdrom.com (8.6.10/8.6.6) with SMTP id KAA16846
          for <freebsd-hackers@freefall.cdrom.com>; Wed, 24 May 1995 10:33:49 -0700
Received: by dg-rtp.dg.com (5.4R2.01/dg-rtp-v02)
	id AA13480; Wed, 24 May 1995 13:33:04 -0400
Received: from lakes (lakes [192.96.3.39]) by ponds.UUCP (8.6.9/8.6.5) with ESMTP id NAA12189 for <freebsd-hackers@freefall.cdrom.com>; Wed, 24 May 1995 13:15:33 -0400
Received: (from rivers@localhost) by lakes (8.6.9/8.6.9) id NAA01329; Wed, 24 May 1995 13:29:14 -0400
Date: Wed, 24 May 1995 13:29:14 -0400
From: Thomas David Rivers <ponds!rivers@dg-rtp.dg.com>
Message-Id: <199505241729.NAA01329@lakes>
To: freebsd-hackers@freefall.cdrom.com, rivers@dg-rtp.dg.com
Subject: Another idea about my sound card (perhaps Plug&Play is the problem?)
Sender: hackers-owner@FreeBSD.org
Precedence: bulk


I just had a thought about my MediaMagic ISP-16 sound card.

If you recall, I mentioned it last month - the fact that I can run
a DOS initialization program and it looks like a Sound Blaster Pro 3.2
to FreeBSD, and works like one as well.

Now - on to my idea.

  First, this card was manufactured in 1994.

  Second, it claims to be "Plug and Play" compatible.

  Third; I'm not using the default IRQ of 7 for the sound card, I moved it
 to 5.  There are no jumpers on the card; the way you configure a different
 interrupt is to run the initialization software.

So - I was thinking - perhaps if I switch to the interruptless printer
driver, and move the sound card IRQ back to 7 - the initial default on the
card would allow it to operate.

I haven't tried this out - but I was still curious - what do you think?  

If this is the case with this "Plug and Play" device, what are we to
do with other "Plug and Play" cards in the future, which will similar
not have jumpers, but instead be informed of their IRQ, etc...   Does
any have an idea of how to negotiate an IRQ with a "Plug and Play"
card?

	- Dave Rivers -