Messages in this thread | | | Date | Sun, 30 Jul 2006 11:18:48 +0200 | From | Pavel Machek <> | Subject | Re: Generic battery interface |
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Hi!
> > I do not understand this. Any polling (in kernel or in userspace) will > > wake the CPU, wasting power. > > The kernel, however, has all the gory details at hand, and can decide > much better about the polling frequency, than the (hopefully) hardware > agnostic userspace. > > Imagine your Zaurus: You don't need to poll very often when you are on > the flat part of the LiIon discharge curve, you probably want more > detailed info near the end.
OTOH some applications just want more frequent polling than others. Shem's "first update after N msec" solution looks most flexible here. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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