> >No, supend/resume works perfectly without any daemon.
>
> Do you mean when the system's idle time is long enough. the system
> will suspend automaticly?

No, nothing happens automatically. I just said that suspend/resume works 
at all.

> I make the system enter into sleep mode only by cat
> /proc/sys/pm/suspend.

And if this works, then suspend works.

There are general-purpose daemons like the apmd that do mostly x86-PC 
related things, but maybe people with embedded hardware need 
special-purpose daemons that do more specific stuff. But this is then 
no longer a kernel issue.


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