---
name: "apple_bce"
section: "4"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/apple_bce"
---

# apple\_bce(4)

Apple T2 Buffer Copy Engine driver

## NAME

**apple\_bce** – Apple T2 Buffer Copy Engine driver

## SYNOPSIS

**device** **pci** **device** **usb** **device** **apple\_bce**

## DESCRIPTION

The **apple\_bce** driver controls the Apple T2 Buffer Copy Engine.

The T2 Buffer Copy Engine, called “BCE” for short, is a device which interacts with higher-level interfaces like the built-in keyboard, trackpad, audio, and VHCI (Virtual USB Host Interface), etc.

## HARDWARE

The **apple\_bce** driver supports the Apple T2 Buffer Copy Engine on the following systems:

- MacBook Air (2018-2020)

- MacBook Pro (2018-2020)

- MacMini (2018)

- Mac Pro (2019 and later)

## SEE ALSO

[asmc(4)](/asmc/4.md), [usb(4)](/usb/4.md)

## HISTORY

The **apple\_bce** driver first appeared in FreeBSD 16.0.

## AUTHORS

**apple\_bce** was written by Abdelkader Boudih ⟨*seuros@FreeBSD.org*⟩. This manpage was written by Enji Cooper ⟨*ngie@FreeBSD.org*⟩.