OpenBSD manual page server

Manual Page Search Parameters

FINTEK(4) Device Drivers Manual FINTEK(4)

fintekFintek F75375 temperature sensor

fintek* at iic? flags 0x0000

The fintek driver provides support for the Fintek F75375 temperature sensor and fan controller. The sensor possesses a collection of sensor values which are made available through the sysctl(8) interface:

$ sysctl hw.sensors.fintek0
hw.sensors.fintek0.temp0=31.00 degC
hw.sensors.fintek0.temp1=29.00 degC
hw.sensors.fintek0.fan0=0 RPM
hw.sensors.fintek0.fan1=0 RPM
hw.sensors.fintek0.volt0=1.72 V DC (VCC)
hw.sensors.fintek0.volt1=1.34 V DC
hw.sensors.fintek0.volt2=1.73 V DC
hw.sensors.fintek0.volt3=0.90 V DC

On some machines the fans will not function properly with the chip in default mode. Setting flags to 0x0001 will make the fans run at full speed to prevent overheating.

iic(4), intro(4), sensorsd(8), sysctl(8)

The fintek driver first appeared in OpenBSD 4.0.

The fintek driver was written by Dale Rahn <>.

July 16, 2013 OpenBSD-current