bios(4)

bios4

A driver for pc firmware, aka bios

Usage

bios0 at mainbus0

Overview

OpenBSD provides support for a limited subset of PC firmware (aka BIOS) subsystems on this platform. Only SMBIOS is supported.

SMBIOS provides detail about system hardware configuration and is used to attach ipmi(4) on most systems.

History

The bios driver was introduced to this platform in OpenBSD 4.0.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.