Re: [RFD] Automatic suspend
From: Arjan van de Ven
Date: Mon Feb 16 2009 - 17:57:04 EST
On Mon, 16 Feb 2009 17:40:10 -0500 (EST)
Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, 16 Feb 2009, Rafael J. Wysocki wrote:
>
> > OK, so I think there are two things that user space may be allowed
> > to do as far as putting devices into low power states is concerned:
> > * disable/enable the automatic power management of the device
> > (provided that the driver supports the automatic PM)
>
> Set the automatic PM parameters (idle timeout, state to go to,
> etc.). And disabling automatic PM altogether (effectively the same as
> setting the idle timeout to infinity).
>
shouldn't idle timeout etc be internal to the driver?
Yes policy preferences / constraints makes sense to communicate,
actual settings do not. For one they keep changing fast all the time
anyway.
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/