On Thu, 1 Jul 2010, Dominik Brodowski wrote: > Alan, > > On Thu, Jul 01, 2010 at 01:16:31PM -0400, Alan Stern wrote: > > As runtime PM becomes more and more popular, it seems likely that > > people will want to know whether or not their devices are getting > > suspended. Or if not people, then programs like powertop. > > > > For that reason, it seems to make sense to build the runtime_status > > sysfs attribute even when CONFIG_PM_ADVANCED_DEBUG isn't enabled. Do > > you agree? > > good idea; haven't looked at any dependencies yet, though... Reading through the code shows there is a drawback: For subsystems that don't implement runtime PM, devices will always show up as "suspended". That's not going to be very useful, unfortunately. Still, for subsystems that _do_ implement runtime PM, there doesn't seem to be any other way to learn the current status of a device. Alan Stern _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
