On Sunday 03 January 2010, Bartłomiej Zimoń wrote: > Dnia 3 stycznia 2010 0:29 "Rafael J. Wysocki" <rjw@xxxxxxx> napisał(a): > > > - could be even used partialy by pm-utils > > > - it is perfect just to notify about event > > > > OK, but why exactly do _you_ need that to happen? > > > > There's one important drawback of making the kernel generate the notification. > > Namely, even if your userspace task is notified by the kernel of a PM event, > > that doesn't mean it'll have the time to act upon that, because the kernel will > > attempt to freeze it right after the notification has been sent. This means > > you'd need a way to make the kernel wait for your user space process to finish > > it's job before continuing the suspend/hibernate process. Otherwise it's not > > going to be very useful. > > > > So if it is bad idea, we could create more advenced implementation. > i.e. IPC or callbacks for this kind of events. > > There is vision in my mind to have alternative to pm-utils, > but even more powerfull and easy to implement in program. > I could try to implement something like that. I guess there's no other way to show people what you're up to, so please go ahead and let me know if you need help. Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
