Am Mittwoch, 26. Dezember 2007 21:32:58 schrieb Pavel Machek: > ... I also don't need to call any suspend() routines, because all the > drivers are already suspended, right? Well, you have a number of devices which cannot do runtime pm. They can do suspend/resume with the whole system. For them these operations mean saving/restoring state. So for these devices implementing autosuspend makes no sense. They would sensibly do only idle/busy detection. > And yes, I want device activity to prevent s2ram. If user is burning > CD, machine should not sleep. If user is actively typing, machine In these cases the devices involved should report themselves busy, shouldn't they? > should not sleep. My vision is: screen saver tells kernel keyboard > need not be very responsive, at that point keyboard driver can > autosuspend the keyboard, and if that was the last device, whole > system sleeps. We lack a notion of telling devices that they are opened only for detecting wakeups. Currently a driver has to assume that an opened device has to be fully functional. Regards Oliver _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
