---
name: "wbsio"
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/wbsio"
---

# wbsio(4)

Winbond LPC Super I/O

## NAME

**wbsio** – Winbond LPC Super I/O

## SYNOPSIS

**wbsio\* at isa? port 0x2e** **wbsio\* at isa? port 0x4e**

## DESCRIPTION

The **wbsio** driver provides support for the Winbond LPC Super I/O ICs. Only the hardware monitoring function is currently supported.

Support for the hardware monitor function is provided through the [lm(4)](/lm/4.md) driver.

## SEE ALSO

[intro(4)](/intro/4.md), [isa(4)](/isa/4.md), [lm(4)](/lm/4.md)

## HISTORY

The **wbsio** driver first appeared in OpenBSD 4.3.

## AUTHORS

The **wbsio** driver was written by Mark Kettenis ⟨*kettenis@openbsd.org*⟩.