I was paging through the distributed.net client changelog and they
had a note there basically asking for a sysctl interface to apm --
in short, they wanted the ability for non-root users to detect
power state (AC/batt) and battery level. At first, I wondered why
they regarded this differently from opening /dev/apm and doing the
requisite ioctl()s. Then I looked at /dev/apm's permissions and
saw the problem.
So what does everyone think? Is it suitable to add a read only
sysctl 'machdep.apm_powerstate' that reports either AC, nn%,
or N/A ? Or should the format be numeric (999 = AC, <=100 = battery %,
-1 = N/A)? Or should we not bother? :-)
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