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

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Message-ID: <4CF4CA45.6070702@stericsson.com>
Date:	Tue, 30 Nov 2010 10:56:21 +0100
From:	Mattias Wallin <mattias.wallin@...ricsson.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linus WALLEIJ <linus.walleij@...ricsson.com>
Subject: Re: [PATCH 2/2] MFD: ab8500-debugfs irq support

Hi,

> 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.
I was hoping for your input here. Can you elaborate on UIO driver?
What interface to user space do you suggest. I have requirements that a user space should be able to subscribe
and unsubscibe for one or several of the 112 ab8500 events.
Debugfs was the choice because I already had register access there and it can easily be compiled away.
I also wanted a clear connection to the irq_chip solution in the ab8500-core driver.
> 
> Cheers,
> Samuel.
> 
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