---
name: "auacer"
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/auacer"
---

# auacer(4)

Acer Labs I/O Controller Hub integrated AC'97 audio device driver

## NAME

**auacer** – Acer Labs I/O Controller Hub integrated AC'97 audio device driver

## SYNOPSIS

**auacer\* at pci?** **audio\* at auacer?**

## DESCRIPTION

The **auacer** device driver supports the M5455 integrated AC'97 audio controller of some Acer Labs I/O Controller Hub.

## SEE ALSO

[ac97(4)](/ac97/4.md), [audio(4)](/audio/4.md), [pci(4)](/pci/4.md)

## HISTORY

The **auacer** device driver appeared in OpenBSD 4.5.

## BUGS

No support for recording or S/PDIF.