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From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: NeilBrown <neilb@suse.de>
Cc: linux-serial@vger.kernel.org, linux-pm@vger.kernel.org,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: Question:  How to power-manage UART-attached devices.
Date: Mon, 30 Apr 2012 23:33:22 +0100	[thread overview]
Message-ID: <20120430223322.GA3951@sirena.org.uk> (raw)
In-Reply-To: <20120501082209.0b560708@notabene.brown>

On Tue, May 01, 2012 at 08:22:09AM +1000, NeilBrown wrote:

>  The question is how can user-space tell the kernel that these devices are
>  'inactive'?

>  I would like to integrate this into Linux in the most  "natural" way that I
>  can but am having trouble.  My current approach involves using "rfkill" but
>  that doesn't work very well for reasons that are probably not very relevant
>  here.  It probably does make sense for powering the GPS antenna, but not
>  much else.

The userspace consumer was added for users like this that live entirely
in userspace.

  reply	other threads:[~2012-04-30 22:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-30 22:22 Question: How to power-manage UART-attached devices NeilBrown
2012-04-30 22:33 ` Mark Brown [this message]
2012-04-30 23:35   ` NeilBrown
2012-05-01 16:33     ` Mark Brown
2012-05-01 23:15       ` NeilBrown
2012-05-02  9:02         ` Mark Brown
2012-04-30 22:51 ` H. Peter Anvin
2012-04-30 23:34   ` Alan Cox
2012-05-01  0:12     ` NeilBrown
2012-04-30 23:47   ` NeilBrown
2012-04-30 23:50     ` H. Peter Anvin
2012-05-01  0:27       ` NeilBrown

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