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Date: Mon, 25 Nov 1996 06:29:47 -0800 (PST)
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From: mark thompson <thompson@tgsoft.com>
To: freebsd-questions@freebsd.org
Subject: irq conflicts
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I suppose i must be confused. I have added a soundblaster (clone) card
to my ISA-based PC (clone), running 2.1.6R.

Here are a couple of lines from my config:

device lpt0 at isa? port?  tty irq 7 vector lptintr
device sb0  at isa? port 0x220 irq 7 conflicts drq 1 vector sbintr

This seems to be legal. However, when sound is sent to /dev/audio, i get
a burst of static, then silence... and the sound playing never completes.

This sounds to me like the interrupts are not happening. Is this really
a legal config (i.e. can the lpt and the sb really share an irq)?

NB: The lpt works fine...

-mark