Messages in this thread | | | Date | Thu, 12 Apr 2007 18:15:05 +0400 | From | Anton Vorontsov <> | Subject | Re: [PATCH 3/7] [RFC] Battery monitoring class |
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On Thu, Apr 12, 2007 at 02:08:18PM +0100, Matthew Garrett wrote: > On Thu, Apr 12, 2007 at 03:25:03AM +0400, Anton Vorontsov wrote: > > + * All voltages, currents, capacities and temperatures in mV, mA, mAh and > > + * tenths of a degree unless otherwise stated. It's driver's job to convert > > + * its raw values to which this class operates. If for some reason driver > > + * can't afford this requirement, then it have to create its own attributes, > > + * plus additional "XYZ_units" for each of them. > > ACPI batteries can report capacity and rate in either mA or mW. Given
You sure, capacity in mA? Then I don't know. But you can safely fallback and create your own attribute (just as in David's battery class, where every battery required to create its own attributes), plus create capacity_units attribute. So, user space will know your driver's specific units.
> the lack of a constant voltage, how do you accurately convert between > the two? Right now, I think this is a loss of functionality over the > current situation.
> > -- > Matthew Garrett | mjg59@srcf.ucam.org
-- Anton Vorontsov email: cbou@mail.ru backup email: ya-cbou@yandex.ru irc://irc.freenode.org/bd2 - 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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