apm – Advanced Power Management 1.2 BIOS interface
bind -a #P /dev
This device presents a low-level interface to
the APM 1.2 bios calls.
It is enabled by adding the line
(The value after the equals sign is ignored; the presence of
the line at all enables the driver.)
It is only available on uniprocessor PCs.
Writing a 386
structure and then reading it back executes an APM call:
the written registers are passed to the call,
and the read registers are those returned by the call.
This device is intended to enable more user-friendly
interfaces such as