From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Henningsson <david.henningsson@canonical.com>
Subject: Re: [RFC PATCH 1/1] ALSA: hda - add a timer to find
 and suspend idle codecs
Date: Tue, 14 Aug 2012 12:05:15 +0200
Message-ID: <502A22DB.5010503@canonical.com>
References: <1344967003-5470-1-git-send-email-mengdong.lin@intel.com>
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On 08/14/2012 07:56 PM, mengdong.lin@intel.com wrote:
> From: Mengdong Lin <mengdong.lin@intel.com>
>
> This patch sets up a timer to monitor changes of the parameter 'power_save'
> and suspend any idle codecs if power save is re-enabled by the user.

Adding timers means are you adding wakeups to the CPU. That seems 
counterproductive if you're trying to save power...?

Is there no way to listen to a change event of some sort instead?

-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic