From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: dstroupe@keyed-upsoftware.com (David Stroupe)
Cc: linux-kernel@vger.kernel.org
Subject: Re: Q:Shared IRQ
Date: Tue, 5 Mar 2002 00:17:32 +0000 (GMT) [thread overview]
Message-ID: <E16i2e4-0001At-00@the-village.bc.nu> (raw)
In-Reply-To: <3C8407C0.1000503@keyed-upsoftware.com> from "David Stroupe" at Mar 04, 2002 05:48:16 PM
> I get not only my interrupts, but also the interrupts of the shared
> device, namely the network card. Is this what I should expect? If I
Yes.
> get a notification for the network card, why is the dev_id the same as
> what I passed? If I didn't have an interrupt pending bit on my
> hardware, how would I distinguish between the interrupts?
If you don't have an interrupt pending bit you are probably completely screwed.
PCI assumes you can tell if you caused the interrupt or you can service events
even if not needed (which basically comes down to the same thing).
Only your driver knows if you are a possible IRQ cause, its up to you to
handle it
prev parent reply other threads:[~2002-03-05 0:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-04 23:48 David Stroupe
2002-03-05 0:17 ` Alan Cox [this message]
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