NAME

	acpi – Advanced Configuration and Power Interface

SYNOPSIS

	(in plan9.ini) *acpi= aux/acpi [ –H ] [ –m mountpoint ] [ –s service ]

DESCRIPTION

Aux/acpi presents at mountpoint (default /dev) an interface to the ACPI. If a service is specified, the interface will be posted at /srv/service as well. With the –H option, aux/acpi will turn off the power immediately. The directory contains the following files. battery Contains one line for each battery in the system. Each line lists 14 fields: the percent charge remaining, power unit used (mW or mA), remaining capacity, last full charge capacity, design capacity, warning and low capacity values, mV separator, present voltage, design voltage, approximate time of charge left as hh:mm:ss, the status (a string, one of unknown, critical, discharging or charging) and the charge start and stop limits in percent. cputemp Each line provides a current temperature reading of a specific CPU. pmctl Writing power off to pmctl will turn off the power. Writing charge bat min max to pmctl will set the upper and lower limit for charging a battery. bat is either all for all batteries or starts with 0.

SOURCE

	/sys/src/cmd/aux/acpi.c

SEE ALSO

	reform(1)

BUGS

	ACPI itself. There are too many ways for controlling battery charging. For now it only works on Thinkpads.

HISTORY

	Acpi first appeared in 9front (October, 2016).