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From: Folkert van Heusden <folkert@vanheusden.com>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Jan Marek <linux@hazard.jcu.cz>,
"linux-os (Dick Johnson)" <linux-os@analogic.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: Is it possible to change IRQ for certain device?
Date: Tue, 15 Jan 2008 22:33:30 +0100 [thread overview]
Message-ID: <20080115213330.GR4263@vanheusden.com> (raw)
In-Reply-To: <75b66ecd0801131957s1e70bda9x342f16a7d16a2789@mail.gmail.com>
> Why is a shared IRQ a problem for you? IRQ handlers are supposed to
> be fast enough that disabling an IRQ line for the duration of the
> handler execution should not be a problem even if the IRQ is shared.
Take the 'zaptel' driver for example, for FXO cards for Asterisk for
example. They hate to share their irq. In fact: they refuse to work when
their irq is shared.
Folkert van Heusden
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next prev parent reply other threads:[~2008-01-15 21:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-10 11:05 Is it possible to change IRQ for certain device? Jan Marek
2008-01-10 11:23 ` Andi Kleen
2008-01-10 14:01 ` linux-os (Dick Johnson)
2008-01-10 23:43 ` Len Brown
2008-01-11 16:57 ` Jan Marek
2008-01-14 3:57 ` Lee Revell
2008-01-14 5:30 ` Bryan Donlan
2008-01-14 6:04 ` Lee Revell
2008-01-15 21:33 ` Folkert van Heusden [this message]
[not found] <fa.LwvfKOhzep/AjTQmtXaIiXMm6zI@ifi.uio.no>
2008-01-11 5:18 ` Robert Hancock
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