[alsa-devel] [RFC PATCH 1/1] ALSA: hda - add a timer to find and suspend idle codecs

[David Henningsson]

On 08/14/2012 07:56 PM, mengdong.lin at intel.com wrote:
> From: Mengdong Lin <mengdong.lin at 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