abtn(4)

abtn4

Adb keyboard special keys driver

Usage

To compile this driver into the kernel, place the following lines in your kernel configuration file:

device adb

Overview

The abtn driver provides support for the extended Fn keys on Apple notebooks with an ADB interface.

Hardware

The abtn driver supports extended keyboard keys (special F-keys) on the following devices:

Apple iBook Keyboard
Apple PowerBook Keyboard

Events

The abtn driver sends events to devd(8) for the following events under the PMU system, and keys subsystem:

brightness - Generates up and down notify types matching the pressed key.
mute
volume - Generates up and down notify types matching the pressed key.
eject

Examples are included in /etc/devd/apple.conf.

Releases

9 releases since FreeBSD 14.0-RELEASE; the text changed 1 time.