---
name: "onyx"
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/onyx"
---

# onyx(4)

Apple onyx audio device

## NAME

**onyx** – Apple onyx audio device

## SYNOPSIS

**onyx\* at macobio?** **audio\* at onyx?**

## DESCRIPTION

The **onyx** driver provides support for audio hardware using the PCM3052 chip found in some macppc machines.

## HARDWARE

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

- PowerBook5,8

- PowerBook5,9

- PowerBook6,8

- PowerMac11,2

## SEE ALSO

[audio(4)](/audio/4.md), [intro(4)](/intro/4.md)

## HISTORY

The **onyx** driver first appeared in OpenBSD 3.9.

## AUTHORS

The **onyx** driver was written by Mark Kettenis ⟨*kettenis@openbsd.org*⟩ based on code written by Tsubai Masanari.

## BUGS

The driver emits some nasty pop-noise when playback starts.

This manual page needs more precision and detail.