owtemp(4)

owtemp4

1-wire temperature device

Usage

owtemp* at onewire?

Overview

The owtemp driver provides support for the 1-Wire temperature sensor. The sensor possesses a single temperature value that can be accessed through the sysctl(8) interface.

The following chips are supported by the driver:

  • Maxim/Dallas DS1820/DS18B20/DS18S20/DS1822

  • Maxim/Dallas DS1920

Releases

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

  1. 4.0
  2. 4.1
  3. 4.2–4.4
  4. 4.5–5.3
  5. 5.4–8.0

History

The owtemp driver first appeared in OpenBSD 4.0.

Authors

The owtemp driver was written by Alexander Yurchenko ⟨[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.