Date: Wed, 24 May 1995 13:29:14 -0400 From: Thomas David Rivers <ponds!rivers@dg-rtp.dg.com> To: freebsd-hackers@freefall.cdrom.com, rivers@dg-rtp.dg.com Subject: Another idea about my sound card (perhaps Plug&Play is the problem?) Message-ID: <199505241729.NAA01329@lakes>
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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 -
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