linux-kernel - Re: sharing interrupt between PCI device

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Message-ID: <491560C7.7050607@gmail.com>
Date:	Sat, 08 Nov 2008 10:49:59 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Grant Grundler <grundler@...isc-linux.org>
CC:	Nobin Mathew <nobin.mathew@...il.com>,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	Robert Hancock <hancockr@...w.ca>
Subject: Re: sharing interrupt between PCI device

On 11/08/2008 08:57 AM, Grant Grundler wrote:
> On Wed, Nov 05, 2008 at 02:50:01PM +0530, Nobin Mathew wrote:
>> Hi
>>
>>
>> Code is here
>> first one USB Virual input devices
>>
>> http://lxr.linux.no/linux+v2.6.27.4/drivers/usb/core/hcd-pci.c
>>
>> Second one is hp-ilo driver
>>
>> http://lxr.linux.no/linux+v2.6.27.4/drivers/misc/hpilo.c
> 
> I looked for usage of request_irq() and didn't see it in either driver.

The second one doesn't use interrupts at all. How can this be listed in
/proc/interrupts on any line?

The first one obviously uses irq by registering it in common *hci layer.
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