[maemo-developers] [maemo-developers] Maemo Alarm/Notifier Interface

[From: Igor Stoppa]

On Mon, 2006-01-16 at 17:21 +0200, ext Weinehall David (Nokia-M/Tampere)
wrote:
> On mån, 2006-01-16 at 15:58 +0100, ext Frantisek Dufka wrote:
> > Nils Faerber wrote:
> > >  I also guess that most
> > > Palms and alike behave the same - off is off. Only exception from that
> > > rule I know of are (some) mobile phones.
> > 
> > No in PalmOS off is not off. On Tungsten T2 you can set it to be waked 
> > up by initiating bluetooth connection with it when it is 'off'. You can 
> > also schedule alarm procedure which gets executed and the display is 
> > even not waked up if you wish. Unlike with N770 you really can't 
> > shutdown PalmOS and battery is not removable in most units so there is 
> > not this type of problem there. Solution for N770 would be to remove the 
> > poweroff item to make it behave like PalmOS and maybe also implement 
> > suspend in kernel which pauses all tasks and powers off unneeded 
> > hardware. But the current system is also good, just don't let users 
> > shutdown the device so easily.
> 
> Why?!?
> 
> A mechanism for wake-up from power-off exists (yes, it's a bit sucky,
> so we'll have to have a workaround for alarms >24h into the future,
> but at least it's possible) -- check
> 
> Power management efficient enough to make suspend meaningless -- check
> 
> I cannot really understand why a lot of people here seem to want
> crippled functionality just because other platforms have limitations.

I understand that if we want to have a consistent crossdevice platform,
then it should be able to deal with other hw that doesn't have as many
power management features as Omap, but that is not really a good reason
to discard what we _do_ have.

Suspend is good compared to poweroff because it can retain the state of
the device and usually trim down startup/shutdown times, but it's
useless if the device actually manages to transparently and silently
save energy.

> 
> 
> Regards: David Weinehall
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-- 
Igor Stoppa (Nokia M - OSSO / Tampere)