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ACPIAC(4) Device Drivers Manual ACPIAC(4)

acpiacACPI AC adapter

acpiac* at acpi?

The acpiac driver supports ACPI AC Adapters. Information about AC power source status (connected or disconnected) is available through this driver as a sensor. AC power source status is updated via an event when a change happens, if the implementation supports it. The sensors provided by acpiac can be monitored using sysctl(8) or sensorsd(8).

acpi(4), intro(4), sensorsd(8), sysctl(8)

The acpiac driver first appeared in OpenBSD 3.8.

The acpiac driver was written by Marco Peereboom <>.

December 10, 2014 OpenBSD-current