From mboxrd@z Thu Jan  1 00:00:00 1970
From: Julian Fuchs <julian@fuchs.cc>
Subject: Problem with interrupt handler
Date: Mon, 25 Jan 2010 18:16:08 +0100
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Hello,

being aware of the risk to bother some people here I would
nevertheless really appreciate your help with the following issue:

Is there any difference in the request_irq() function call in
comparison to the one in the normal kernel?

I'm trying to run

request_irq(irq, interrupt_handler, IRQF_SHARED | IRQF_DISABLED |
IRQF_NODELAY, MODULE_IDENT, &stage)

on 2.6.31.6-rt19 but it doesn't call interrupt_handler() when an
interrupt is received.

In the plain kernel 2.6.31 it works with this call:

request_irq(irq, interrupt_handler, IRQF_SHARED | IRQF_DISABLED,
MODULE_IDENT, &stage)

Do you have hints to literature / tutorials / code I should look at?

I would really appreciate any kind of help,

thanks,

Julian