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    SubjectRe: [RFD] Automatic suspend
    Date
    On Monday 16 February 2009, Arjan van de Ven wrote:
    > On Mon, 16 Feb 2009 17:40:10 -0500 (EST)
    > Alan Stern <stern@rowland.harvard.edu> 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


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