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

# bm(4)

Apple BMAC Ethernet device

## NAME

**bm** – Apple BMAC Ethernet device

## SYNOPSIS

**bm\* at macobio?** **lxtphy\* at mii?**

## DESCRIPTION

The **bm** device driver supports Apple BMAC and compatible Ethernet devices.

## HARDWARE

Machines supported by the **bm** driver include:

- PowerBook1,1

- PowerMac1,1

## SEE ALSO

[arp(4)](/man/arp/4.md), [ifmedia(4)](/man/ifmedia/4.md), [intro(4)](/man/intro/4.md), [lxtphy(4)](/man/lxtphy/4.md), [netintro(4)](/man/netintro/4.md), [hostname.if(5)](/man/hostname.if/5.md), [ifconfig(8)](/man/ifconfig/8.md)

## AUTHORS

The **bm** Ethernet driver was written by Tsubai Masanari.