On Wed, May 05, 2010 at 08:22:08PM +0100, Matthew Garrett wrote: > On Wed, May 05, 2010 at 03:13:52PM -0400, Alan Stern wrote: > > Does it know when a call is in progress? > Perhaps you could infer that from the audio routing setup? I don't know > enough about embedded codecs. Yes, you can providing we extract a bit more information from the machine drivers and/or userspace - we already do our power management based on paths. The implementation I'd do here is to provide a facility for marking some of the path endpoints as suspend insensitive then on suspend leave those endpoints in their current state, force the other endpoints off temporarily and re-run the standard power checks. One thing I'll need to have a bit of a think about is if we need to provide the ability to offer control to userspace for the suspend state of path endpoints separately to their runtime state; I suspect the answer is yes. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
