---
name: "admtemp"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/admtemp"
---

# admtemp(4)

Analog Devices ADM1021 temperature sensor

## NAME

**admtemp** – Analog Devices ADM1021 temperature sensor

## SYNOPSIS

**admtemp\* at iic?**

## DESCRIPTION

The **admtemp** driver provides support for the Analog Devices ADM1021, Analog Devices ADM1023, Analog Devices ADM1032, Genesys Logic GL523SM, Global Mixed-mode Technology G781, Maxim 1617, NXP SA56004x, and Xeon embedded temperature sensors. The device possesses internal and external temperature sensors. These values are made available through the [sysctl(8)](/sysctl/8.md) interface.

On i386 machines, this driver also supports the Xeon embedded I2C temperature probes. In this case, however, only one temperature value is provided.

## SEE ALSO

[iic(4)](/iic/4.md), [intro(4)](/intro/4.md), [sensorsd(8)](/sensorsd/8.md), [sysctl(8)](/sysctl/8.md)

## HISTORY

The **admtemp** driver first appeared in OpenBSD 3.9.

## AUTHORS

The **admtemp** driver was written by Theo de Raadt ⟨*deraadt@openbsd.org*⟩.