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Re: Bug#594099: ITP: pm-utils-light -- pm-utils replacement for embedded hardware

On Tue, Aug 24, 2010 at 09:53:14AM +0200, Josselin Mouette wrote:

> It looks like an interesting piece software, but having to choose
> between one implementation that is slow and one that doesn’t support
> quirks looks like a lose-lose situation to me.
> Are there any efforts underway to merge the two projects, or at least
> their functionality?

Not as far as I know, and I'm not sure it would be possible. We talked
about it in the pm-utils list, but it does not sound feasible.

pm-utils achieves lots of flexibility by using rather complex
shellscripts that source a large library of useful functions. Running
those shellscripts on the freerunner takes seconds of real time:

It also implements a "cancel resume" exit code from hooks, that is
currently used to resuspend right away if the phone ususpended just
because you unplugged your USB cable. Normal pm-utils won't be able to
support that anytime soon, but they agreed to standardise the exit code
(see the whole thread linked earlier).

The lack of quirks support is not as bad as it sounds, as you'd use
pm-utils-light on embedded hardware where you generally have an intimate
relationship with the hardware and are either in a position to fix the
drivers getting rid of the quirks, or in a need to handle quirks with
hardware-specific custom code.

I'd say that the systems that need quirk support are more than fast
enough to handle standard pm-utils without issues. I wouldn't suggest
people to install pm-utils-light unless they really know what they are



GPG key: 4096R/E7AD5568 2009-05-08 Enrico Zini <enrico@enricozini.org>

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