obio(4)

obio4

Landisk onboard i/o bus device

Usage

obio0 at mainbus?

Overview

The obio interface serves as an abstraction used by the autoconfiguration system to help find and attach devices (e.g. the disk controllers) connected to the landisk onboard I/O bus.

OpenBSD provides support for the following devices:

power(4)

power switch

wdc(4)

WD100x compatible hard disk controller driver

History

The obio driver first appeared in OpenBSD 4.1.

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