linux-kernel - Re: How to establish a priority to an interrupt handler

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Message-ID: <4DD37CF0.8070703@ladisch.de>
Date:	Wed, 18 May 2011 10:01:52 +0200
From:	Clemens Ladisch <clemens@...isch.de>
To:	Monica Puig-Pey <puigpeym@...can.es>
CC:	linux-kernel@...r.kernel.org
Subject: Re: How to establish a priority to an interrupt handler

Monica Puig-Pey wrote:
> I'm developing a PCI device driver using hardware interrupts.
> I would like to give a priority chosen by me to my IRQ handler,

Please note that
1) priorities are relative to the other priorites currently in use,
   so assigning a fixed priority does not make sense unless you know
   all the other priorites; and
2) it is the job of the administrator, not of the driver writer, to
   determine which device gets the highest priority.

Regards,
Clemens
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