---
name: "etphy"
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/etphy"
---

# etphy(4)

Agere/LSI ET1011 TruePHY Gigabit Ethernet PHY

## NAME

**etphy** – Agere/LSI ET1011 TruePHY Gigabit Ethernet PHY

## SYNOPSIS

**etphy\* at mii?**

## DESCRIPTION

The **etphy** driver supports the Agere/LSI ET1011 TruePHY 10/100/1000 Ethernet PHYs including the integrated TruePHY in ET1310 based adapters.

## SEE ALSO

[ifmedia(4)](/ifmedia/4.md), [intro(4)](/intro/4.md), [mii(4)](/mii/4.md), [ifconfig(8)](/ifconfig/8.md)

## HISTORY

The **etphy** device driver first appeared in OpenBSD 4.3.

## AUTHORS

The **etphy** driver was written by Sepherosa Ziehau for DragonFly and ported to OpenBSD by Jonathan Gray ⟨*jsg@openbsd.org*⟩.