Am Sonntag 01 März 2009 23:56:47 schrieb Pavel Machek: > > Allowing user space to suspend input devices while they are still open > > is useful. The user-space code that reads from the input devices does > > not need to know if the device is suspended or not, and the kernel > > cannot auto suspend input devices based on inactivity. > > Actually, I'd like you to fix your userspace and close input devices > when it does not need them. Given the way you control the platform it > should not be that hard. I do not see why we'd want to invent new > interface for "uhuh, I have opened the keyboard but I am not really > interested in keys being pressed". Generally you can't do this. A task has an open fd. - you cannot assume it can open the device again (fd may be inherited) - keeping the device open makes sure you are talking to the same device - you may want to avoid repeating expensive initialisations - some input devices also do output Regards Oliver _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
