| AIBS(4) | NetBSD Kernel Interfaces Manual | AIBS(4) |
The driver supports an arbitrary set of sensors, provides descriptions regarding what each sensor is used for, and reports whether each sensor is within the specifications as defined by the motherboard manufacturer through ACPI.
The aibs driver supports envsys(4) sensor states as follows:
Sensor values and limits are made available through the envsys(4) interface, and can be monitored with envstat(8). For example, on an ASUS V3-P5G965 barebone:
$ envstat -d aibs0
Current CritMax WarnMax WarnMin CritMin Unit
Vcore Voltage: 1.152 1.600 0.850 V
+3.3 Voltage: 3.312 3.630 2.970 V
+5 Voltage: 5.017 5.500 4.500 V
+12 Voltage: 12.302 13.800 10.200 V
CPU Temperature: 27.000 95.000 80.000 degC
MB Temperature: 58.000 95.000 60.000 degC
CPU FAN Speed: 878 7200 600 RPM
CHASSIS FAN Speed: 0 7200 700 RPM
Generally, sensors provided by the aibs driver may also be supported by a variety of other drivers, such as lm(4) or itesio(4). 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:
As a result, sensor readings from the actual native hardware monitoring drivers are redundant when aibs is present, and may be ignored as appropriate. Whereas on some supported operating systems the native drivers may have to be specifically disabled should their presence be judged unnecessary, on others the drivers like lm(4) are not probed provided that acpi(4) is configured and the system potentially supports the hardware monitoring chip through ACPI.
| June 12, 2011 | NetBSD 5.99 |