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On 5/5/07, Anton Vorontsov <cbou@mail.ru> wrote:
> Hello Henrique, Shem,>> On Sat, May 05, 2007 at 12:54:13AM -0300, Henrique de Moraes Holschuh wrote:
> > On Fri, 04 May 2007, Shem Multinymous wrote:> > > >+enum power_supply_type {> > > >+ POWER_SUPPLY_TYPE_BATTERY = 0,> > > >+ POWER_SUPPLY_TYPE_UPS,> > > >+ POWER_SUPPLY_TYPE_AC,> > > >+ POWER_SUPPLY_TYPE_USB,> > > >+};> > >> > > How about dumb (non-USB) DC power? Any reason to distinguish it from AC?> >> > Hmm, if it should not be distinguished, it is better to rename AC to
> > something that means continuous power. But I'd rather have it AC and DC, as
> > something might have both supplies separate, and you might want to
> > differentiate them for some (human interface) reason. After all, USB and DC
> > are not really different anyway...> >> > Anyway, what IS the difference between UPS and battery, or UPS and AC/DC for
> > that matter? When should UPS be used? If you have UPS there, should not
> > MGG (motor-generator group) also be provided?> >> > Given that USB-power *is* usually also "dumb" (i.e. it doesn't do any
> > control signaling over the USB bus for power-control purposes), IMHO it
> > might be better to have just battery, AC and DC as types. And a primary and
> > secondary notion too, as that is common. It would be generic.
> >
> > Or maybe I just didn't get the idea behind the "type" attribute :-)
> >
> > I'd appreciate if these were documented in the text file.>> I think I got the start point of confusion. It's indeed bad to call such
> power supply type as AC. Maybe I should it rename to ADAPTER? Or WALL?
or MAINS?
> type, is really `type' of power supply: imagine icon GUI application will
> use for different types. Type is not alternating/direct current stuff,
> it will be better to impelemnt `current_type' attribute for such matter.
>> As for Battery/UPS difference.. yes, they're quite similar.. but again,
> imagine laptop with battery, and connected to UPS. ;-) How userspace
> will differ internal battery from UPS? Yup, by type attribute. I hope
> it makes sense... If not, we simply can remove UPS type.
>>> And again, much thanks for your review and ideas!>> --> Anton Vorontsov> email: cbou@mail.ru> backup email: ya-cbou@yandex.ru> irc://irc.freenode.org/bd2> _______________________________________________> Kernel-discuss mailing list> Kernel-discuss@handhelds.org> https://handhelds.org/mailman/listinfo/kernel-discuss>
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