On Monday 16 February 2009, Arjan van de Ven wrote: > 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. Usually different devices are handled by the same driver. I don't really think the same value will be suitable for all of them, so the users should at least be able to override the driver default, IMO. Thanks, Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
