---
name: "octsmi"
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/octsmi"
---

# octsmi(4)

OCTEON system management interface

## NAME

**octsmi** – OCTEON system management interface

## SYNOPSIS

**octsmi\* at fdt?**

## DESCRIPTION

The **octsmi** driver provides support for the OCTEON system management interface. This interface connects the OCTEON SoC with external Ethernet PHYs.

## SEE ALSO

[cnmac(4)](/cnmac/4.md), [intro(4)](/intro/4.md), [mii(4)](/mii/4.md)

## HISTORY

The **octsmi** driver first appeared in OpenBSD 5.4.