Hi!
> > > > yellow off: not charging
> > > > yellow on: charging
> > > > yellow fast blink: charge error
> > > >
> > > > I think even slow blinking was used somewhere. I have some code from
> > > > John Lenz (attached); it uses sysfs interface, exports led collor, and
> > > > allows setting different frequencies.
> > > >
> > > > Is that acceptable, or should some other interface be used?
> > >
> > > IMHO reducing digital outputs to LEDs goes not far enough. All System-
> > > on-Chip CPUs have General Purpose I/O pins today, which can act as
> > > inputs or outputs and may be used for LEDs, matrix keyboard lines,
> >
> > We have some leds that are *not* on GPIO pins (like driven by
> > ACPI). We'd like to support those, too.
>
> I though ACPI was software? These LEDs have to be driven by some hardware,
> right?
Right, but you don't know by *which* hardware. Only ACPI AML code knows.
So from linux POW, they are handled by ACPI.
It may even trap to SMM BIOS.
--
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms
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