linux-kernel - Re: [RFC][PATCH] gpiolib: add irq_wake (power-management) sysfs file

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Date:	Wed, 16 Nov 2011 14:37:31 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Patrick Combes <p-combes@...com>
Cc:	grant.likely@...retlab.ca, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, Hugo Dupras <h-dupras@...com>
Subject: Re: [RFC][PATCH] gpiolib: add irq_wake (power-management) sysfs file

On Wed, Nov 16, 2011 at 03:30:13PM +0100, Patrick Combes wrote:

> > ...this doesn't do anything to stop userspace doing multiple enables and
> > disables.

> Do you mean there is a need to prevent that?
> Basically the code above accepts both "1" or "enable" strings to enable the
> property. I could limit that to "enable" / "disable" if it is confusing.

That's not the problem.  The problem is that if you disable it might not
actually disable the wake if it's previously been enabled multiple times.
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