linux-kernel - Re: Question: How to power-manage UART-attached devices.

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Message-ID: <20120502090216.GD4075@opensource.wolfsonmicro.com>
Date:	Wed, 2 May 2012 10:02:17 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	NeilBrown <neilb@...e.de>
Cc:	linux-serial@...r.kernel.org, linux-pm@...r.kernel.org,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: Question:  How to power-manage UART-attached devices.

On Wed, May 02, 2012 at 09:15:16AM +1000, NeilBrown wrote:

> However it doesn't suit my need - I want something more abstracted.

> I can see there may well be a place for a simple on/off switch for some
> components, but then I would prefer to see it as

>    /sys/class/power-switch/$devicename/state

> rather than

>   /sys/devices/platform/reg-userspace-consumer.X/{name,state}

That's a simple matter of programming if someone wants to do it, can't
say it seems worth the effort personally though especially when classes
are supposed to be going away.

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