battery_pmu
—
support for batteries and sensors in PCI-based Apple
Powerbooks
The battery_pmu
driver provides support for batteries
and hardware sensors found in first generation PCI-based PowerBooks (i.e.
Apple Powerbook 2400, 3400 and 3500 (also known as Original PowerBook G3).
Currently it only exports a few sensors via the
envsys(4) interface, including
battery charge, voltage, CPU and battery temperature and AC power
availability.
There is no APM emulation right now and the battery current sensor may return
misleading or wrong data. This driver is considered preliminary and may be
replaced at some point.