Light sensor on XO-1.75
pgf at laptop.org
Fri Sep 2 10:07:54 EDT 2011
> > yes, it's a nice trick. i think it was discussed on this list last year.
> > it's not very sensitive, but it can tell us the difference between full
> > sun and not, which is really when we'd want to turn off the backlight.
> Given that turning off the backlight usually isn't time critical, how
> about triggering a measurement cycle only when user space actually reads
> from the sysfs file? That would disturb regular operation of the nearby
> LED only occasionally.
yeah, we'll figure out something like that. work in progress.
paul fox, pgf at laptop.org
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