ADM1026HM(4) Device Drivers Manual ADM1026HM(4)

adm1026hm
Analog Devices ADM1026 complete thermal system management controller

adm1026hm* at iic0 addr 0x2e: ADM1026 hardware monitor: rev. 0x4, step. 0x5
adm1026hm*: 8 fans, 3 temperatures, 15 voltages

The adm1026hm driver provides support for the Analog Devices ADM1026 hardware monitor. The chip possesses 8 fan speed sensors, 3 temperature sensors, and 17 voltage sensors. The number of each sensor type configured by the driver depends on the chip configuration.

The values of the sensors are made available through the envstat(8) interface.

Sensor Units Description
RPM Fan 0-7
C Internal temperature
C External temperature 1–2
mV DC Battery voltage
mV DC 3.3V standby voltage
mV DC 3.3V main voltage
mV DC 5.0V supply voltage
mV DC +12V supply voltage
mV DC -12V supply voltage
mV DC Analog in (3.3V reference) 0–5
mV DC Analog in (2.5V reference) 0–3

iic(4), intro(4), envstat(8)

The adm1026hm driver was written by Julian Coleman <jcoleman@NetBSD.org>.

It's not possible to determine if either a sensor is not connected, or the monitored device is producing no output. Therefore, unconnected sensors will show outputs of 0.

The adm1026hm driver does not support checking or altering limit values, interrupt output, nor the built-in EEPROM.

December 11, 2015 NetBSD 9.4