Re: Next gen PM interface

[Pavel Machek <pavel@suse.cz>]

Hi!

> > This can also handle the user-dictated policy, which I haven't seen
> > discussed yet. For instance, when you close the lid or press the power
> > button, the system can enter suspend or it can power off. If the kernel
> > simply exported the event, the userspace daemon could simply check its
> > config file for the proper thing to do and initiate the transition.
> 
> Exactly what I was suggesting. In this case, you'd get the event
> 
>         SLEEP ACPI Laptop case closed
> 
> and your perl script could do something vaguely like
> 
>         /ACPI Laptop case closed$/ && system "shutdown -p now";
> 
> to turn the machine off instead of sleeping.


Lid is polled device, at least in ACPI case. Take a look at current
/proc/power/ -- it contains file "ac" saying "on-line" or
"off-line". I believe we should add another device file "lid"
containing either "open" or "closed"
								Pavel
-- 
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org