uthum(4)

uthum4

Temper hid thermometer and hygrometer

Usage

uthum* at uhidev?

Overview

The uthum driver provides support for pcsensors TEMPer devices. The following devices are supported by the uthum driver:

DeviceSensors
TEMPerHUM1 Temperature and 1 Humidity
TEMPer1 Temperature (internal)
TEMPer11 Temperature (external)
TEMPer22 Temperature (internal/external)
TEMPerNTC2 Temperature (internal/external)

The sensor possesses a collection of sensor values which are made available through the sysctl(8) interface. The humidity data unit is "%RH" (relative humidity) and the temperature data unit is "degC".

Releases

35 releases since OpenBSD 4.7; the text changed 3 times.

  1. 4.7
  2. 4.8–5.3
  3. 5.4
  4. 5.5–8.0

Authors

The uthum driver was written by Yojiro UO ⟨[email protected]⟩.

Bugs

There is not enough support for the external temperature sensor of the TEMPerNTC. Currently the uthum driver supports about 0 degC to 120 degC for the sensor.

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