ACPI control method battery
acpibat* at acpi?
acpibat 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
acpi(4), acpisbs(4), intro(4), sensorsd(8), sysctl(8)
acpibat driver first appeared in
acpibat driver was written by
Some systems do not propagate battery insertion up to the driver.