NAME¶
aibs
—
ASUSTeK AI Booster ACPI ATK0110 voltage, temperature
and fan sensor
SYNOPSIS¶
To compile this driver into the kernel, place the following line in your kernel
configuration file:
device aibs
Alternatively, to load the driver as a module at boot time, place the following
line in
loader.conf(5):
DESCRIPTION¶
The
aibs
driver provides support for the
voltage, temperature and fan sensors available through the ATK0110 ASOC ACPI
device on ASUSTeK motherboards. The number of sensors of each type, as well as
the description of each sensor, varies according to the motherboard.
The driver supports an arbitrary set of sensors, provides descriptions regarding
what each sensor is used for, and reports the current values as well as the
supposed range specifications of each sensor's input as defined by the
motherboard manufacturer through ACPI.
The range specifications are as follows:
- Voltage sensors have a lower and an upper range specification.
- Temperature sensors have two upper specifications.
- Fan sensors may either have only the lower specification, or, depending on
the DSDT, one lower and one upper specification.
Sensor readings and the range specifications are made available through the
sysctl(3) interface, and can be monitored with
sysctl(8). For example, on an ASUS V3-P5G965
barebone:
> sysctl dev.aibs.0.{volt,temp,fan}
dev.aibs.0.volt.0: 1192 850 1600
dev.aibs.0.volt.1: 3312 2970 3630
dev.aibs.0.volt.2: 5017 4500 5500
dev.aibs.0.volt.3: 12302 10200 13800
dev.aibs.0.temp.0: 28.0C 80.0C 95.0C
dev.aibs.0.temp.1: 55.0C 60.0C 95.0C
dev.aibs.0.fan.0: 878 600 7200
dev.aibs.0.fan.1: 0 700 7200
> sysctl -d dev.aibs.0.{volt,temp,fan}
dev.aibs.0.volt:
dev.aibs.0.volt.0: Vcore Voltage
dev.aibs.0.volt.1: +3.3 Voltage
dev.aibs.0.volt.2: +5 Voltage
dev.aibs.0.volt.3: +12 Voltage
dev.aibs.0.temp:
dev.aibs.0.temp.0: CPU Temperature
dev.aibs.0.temp.1: MB Temperature
dev.aibs.0.fan:
dev.aibs.0.fan.0: CPU FAN Speed
dev.aibs.0.fan.1: CHASSIS FAN Speed
Generally, sensors provided by the
aibs
driver may also be supported by certain other drivers or utilities that access
the ISA / LPC or I2C / SMBus devices directly. The precise collection of
aibs
sensors is comprised of the sensors
specifically utilised in the motherboard design, which may be supported
through a combination of one or more physical hardware monitoring chips.
The
aibs
driver, however, provides the
following advantages when compared to the native hardware monitoring drivers
or other utilities:
- Sensor values from
aibs
are expected to
be more reliable. For example, voltage sensors in many hardware monitoring
chips can only sense voltage from 0 to 2 or 4 volts, and the excessive
voltage is removed by the resistors, which may vary with the motherboard
and with the voltage that is being sensed. In
aibs
, the required resistor factors are
provided by the motherboard manufacturer through ACPI; in the native
drivers, the resistor factors are encoded into the driver based on the
chip manufacturer's recommendations. In essence, sensor values from
aibs
are very likely to be identical to
the readings from the Hardware Monitor screen in the BIOS.
- Sensor descriptions from
aibs
are more
likely to match the markings on the motherboard.
- Sensor range specifications are supported by
aibs
. The range specification is
reported for each individual sensor as suggested by the motherboard
manufacturer. For example, the threshold for the CPU temperature sensor is
likely to be significantly higher than that for the chassis temperature
sensor.
- Support for newer chips in
aibs
. Newer
chips may miss a native driver, but should be supported through
aibs
regardless.
SEE ALSO¶
sysctl(3),
acpi(4),
sysctl(8)
HISTORY¶
The
aibs
driver first appeared in
OpenBSD 4.7,
DragonFly 2.5,
NetBSD 6.0 and
FreeBSD 9.0.
An earlier version of the driver,
acpi_aiboost
, first appeared in
FreeBSD 7.0 and
NetBSD 5.0.
AUTHORS¶
The
aibs
driver was written for
OpenBSD,
DragonFly,
NetBSD and
FreeBSD by
Constantine A. Murenin
⟨cnst@FreeBSD.org⟩, Raouf Boutaba Research Group, David R.
Cheriton School of Computer Science, University of Waterloo.
An earlier version of the driver, named
acpi_aiboost
, was written for
FreeBSD by
Takanori
Watanabe.