linux-kernel - Re: Is it possible to change IRQ for certain device?

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Date:	Tue, 15 Jan 2008 22:33:30 +0100
From:	Folkert van Heusden <folkert@...heusden.com>
To:	Lee Revell <rlrevell@...-job.com>
Cc:	Jan Marek <linux@...ard.jcu.cz>,
	"linux-os (Dick Johnson)" <linux-os@...logic.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: Is it possible to change IRQ for certain device?

> 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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