Date: Sat, 8 Nov 2008 12:15:36 -0700
From: Grant Grundler <grundler@parisc-linux.org>
To: Jiri Slaby <jirislaby@gmail.com>
Cc: Grant Grundler <grundler@parisc-linux.org>,
       Nobin Mathew <nobin.mathew@gmail.com>, linux-kernel@vger.kernel.org,
       linux-pci@vger.kernel.org, Robert Hancock <hancockr@shaw.ca>
Subject: Re: sharing interrupt between PCI device
Message-ID: <20081108191536.GC28039@colo.lackof.org>
References: <fa.h7+lofM1lpbRM5V4/ti5d7RwXuM@ifi.uio.no> <4910E8AC.7050407@shaw.ca> <8d6898730811042349p19e65556l8e1c851b27758d5@mail.gmail.com> <20081108172716.GA28039@colo.lackof.org> <4915E43E.4010206@gmail.com>
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On Sat, Nov 08, 2008 at 08:10:54PM +0100, Jiri Slaby wrote:
> Grant Grundler napsal(a):
> > So I see how the IRQ is enabled and disabled. I still don't see where
> > an interrupt handler is bound to IRQ 225 (output you posted today in
> > another email).
> 
> This irq setup is done during pci_enable_device.

Sorry, I wasn't quite correct: pci_enable_device() should only assign IRQs,
not enable them. request_irq() would enable them.

> > Nobin, can you dump /proc/interrupts when both drivers
> > are loaded and also send the dmesg output after both are loaded?
> 
> This won't show the hp driver as it doesn't request_irq.

Yup - that's what I expect too. But I was afraid something else might
be calling request_irq() and I'm just not seeing it. :)

grant
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