ACPI control method battery
acpibat* at acpi?
driver supports the ACPI Control
Method Battery interface between the battery and the host. Information about
the battery, such as capacity, recharge rate, voltage, and serial number, is
available through this driver. Battery status is updated through an event
triggered when a battery changes state (such as starting to charge) and, as a
failsafe if the system does not support passing such events, every 10 seconds.
Battery status can be monitored using
driver first appeared in
driver was written by
Some systems do not propagate battery insertion up to the driver.