On Mon, 16 Feb 2009 23:51:16 +0100 Pavel Machek <pavel@xxxxxxx> wrote: > Hi! > > > > Userland should never ever control the state of a device like this > > > directly. It should do so by a) closing the device and b) setting > > > latency / functional requirements. > > > > The user, however, may want to forcibly put a device into a low > > power state without stopping all of the applications that depend on > > it (eg. have it open). Do you think that we shouldn't allow users > > to do such things? > > I don't think we should do this... of you want device to be powered > down, just don't keep it open. revoke should be enough :-). > > ...one execption here is the disk driver; unmounting filesystems to > let the disk spin down is probably too heavy. but spin down happens on non-activity ;) it's more a slumber than a power down -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
