linux-kernel - Re: [Update][PATCH 5/5] ACPI / PM: Expose lists of device power resources to user space

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Message-ID: <20130124003407.GC10969@kroah.com>
Date:	Wed, 23 Jan 2013 16:34:07 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"Kristen C. Accardi" <kristen.c.accardi@...el.com>,
	Len Brown <lenb@...nel.org>
Subject: Re: [Update][PATCH 5/5] ACPI / PM: Expose lists of device power
 resources to user space

On Wed, Jan 23, 2013 at 07:01:37PM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Since ACPI power resources are going to be used more extensively on
> new hardware platforms, it is necessary to allow user space (powertop
> in particular) to look at the lists of power resources corresponding
> to different power states of devices for diagnostics and control
> purposes.
> 
> For this reason, for each power state of an ACPI device node using
> power resources create a special attribute group under the device
> node's directory in sysfs containing links to sysfs directories
> representing the power resources in that list.  The names of the
> new attribute groups are "power_resources_<state>", where <state>
> is the state name i.e. "D0", "D1", "D2", or "D3hot".
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Thanks for fixing this up.

Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
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