From:	Harold Roman 978-461-0402 Ext 223 <harold AT giganet DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: PCI Interrupt Handler
Date:	Tue, 30 Jun 1998 20:24:33 -0400
Organization:	GigaNet Inc.
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Message-ID:	<359981C1.1777702C@giganet.com>
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To:	djgpp AT delorie DOT com
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Thank you, Thank you, Thank you.

Your code example was worth a thousand words! I had tried to program the
8159 interrupt controller, but I didn't think I was doing it right.
Well, I did have that part right. The part I messed up on was the
interrupt number to IRQ number mapping! It's always the little things
;-)

You mentioned that your code does not do locking, so virtual memory
should be turned off. I think there might be another hazard as well. PCI
devices are allowed to share interrupts, so if the PCI device is sharing
the interrupt, then your hook_interrupt and release_interrupt will not
be safe. But, that's another topic.

Thanks again.

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