linux-kernel - Re: [PATCH 2/2] MFD: ab8500-debugfs irq support

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Message-ID: <20101126155127.GE27663@sortiz-mobl>
Date:	Fri, 26 Nov 2010 16:51:28 +0100
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Mattias Wallin <mattias.wallin@...ricsson.com>
Cc:	linux-kernel@...r.kernel.org,
	Linus Walleij <linus.walleij@...ricsson.com>
Subject: Re: [PATCH 2/2] MFD: ab8500-debugfs irq support

Hi Mattias,

On Fri, Nov 26, 2010 at 01:07:09PM +0100, Mattias Wallin wrote:
> This patch makes it possible to listned for ab8500 interrupts
> from userspace. A sysfs file is dynamically created
> and sysfs_notify is called when an interrupt occurs. This will
> make the userspace poll call to be released.
I think writing a UIO driver for that matter will make your life a lot easier.
And to be honest, having an IRQ handler on a debugfs related piece of code
sounds just wrong.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
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