fintek(4)

fintek4

Fintek f75375 temperature sensor

Usage

fintek* at iic? flags 0x0000

Overview

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.

Releases

42 releases since OpenBSD 4.0; the text changed 4 times.

  1. 4.0
  2. 4.1
  3. 4.2–5.1
  4. 5.2–5.3
  5. 5.4–8.0

History

The fintek driver first appeared in OpenBSD 4.0.

Authors

The fintek driver was written by Dale Rahn ⟨[email protected]⟩.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.