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List:       freedesktop-ohm-devel
Subject:    Re: [ohm] OHM vs. PPM
From:       Marcel Holtmann <marcel () holtmann ! org>
Date:       2008-04-30 16:11:14
Message-ID: 1209571874.28146.3.camel () violet ! holtmann ! net
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Hi Rob,

> > might be a quite provoking subject, however, I like to attract some
> > responses... ;-)
> > 
> > For quite some while now, I'm looking into finding a replacement (and
> > starting to become active in the development for it), for the powersave
> > daemon we use on openSUSE based distributions. Actually it's about the
> > question: "Who does the power management job when there's no desktop
> > applet?"
> > 
> > Obviously, two frameworks caught my eye... open-hardware-manager (OHM [1])
> > and the power-policy-manager (PPM [2]). So I have a couple of questions:
> > 
> >  1. Is OHM aught to be used on usual desktop/laptop systems? I mean, it
> >     would be a valid target to define that OHM is "just" meant for
> >     embedded devices and thus, development wouldn't consider
> >     problems/drawbacks on the desktop side.
> 
> OHM needs some work before its usable on a desktop system, mainly in 
> that it should become a session daemon rather than a system daemon - 
> connecting up to X from the system is not ideal.

why? Leave it as system daemon and have an "agent" running in the X
session that OHM can refer requests to. You might wanna check out on how
BlueZ does it with PIN requests and mode change confirmations.

D-Bus works beautiful for us in these cases. You can even easily monitor
if an agent process dies etc.

Regards

Marcel


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