---
name: "lmn"
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/lmn"
---

# lmn(4)

National Semiconductor LM93 temperature, voltage, and fan sensor

## NAME

**lmn** – National Semiconductor LM93 temperature, voltage, and fan sensor

## SYNOPSIS

**lmn\* at iic?**

## DESCRIPTION

The **lmn** driver provides support for the National Semiconductor LM93 sensors. The sensor possesses a collection of sensor values which are made available through the [sysctl(8)](/sysctl/8.md) interface.

## SEE ALSO

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

## HISTORY

The **lmn** driver first appeared in OpenBSD 4.3.

## AUTHORS

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