On Tue, 12 Oct 2010, Rafael J. Wysocki wrote: > It seems to me that for some devices it might be more convenient to have > an "execute pm_runtime_idle() for this device right now" sysfs trigger > (and analogously for resume). Indeed, or even "execute pm_runtime_suspend()". If the driver uses autosuspend then the runtime_idle callback will call pm_runtime_autosuspend, which won't do what you want. > Anyway, please note that the scenario in which the driver detects inactivity > and suspends the device in response is not the only one possible. The other > one is that the driver is told to suspend the device and then blocks apps > wanting to access it until resumed. But it initiates a resume as soon as an app tries to use the device, right? Otherwise you've got a "sticky off", as Dmitry would say. > Right now we have interfaces for the > former, but not for the latter. If it's not a "sticky off", power/control implements the latter interface. Alan Stern _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
