<option>(adapter)</option>
</term>
<listitem>ACPI ac adapter state. On linux, the adapter option specifies the
- subfolder of /sys/class/power_supply containing the state information (defaults
- to "AC"). Other systems ignore it.
+ subfolder of /sys/class/power_supply containing the state information (tries "AC"
+ and "ADP1" if there is no argument given). Non-linux systems ignore it.
<para /></listitem>
</varlistentry>
<varlistentry>