freebsd-nq/share/man/man4/man4.powerpc/abtn.4
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.\" Copyright (c) 2011 Justin Hibbits
.\" Copyright (c) 2009 Nathan Whitehorn <nwhitehorn@FreeBSD.org>
.\" All rights reserved.
.\"
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.\" $FreeBSD$
.\"
.Dd October 16, 2011
.Dt ABTN 4
.Os
.Sh NAME
.Nm abtn
.Nd ADB Keyboard Special Keys Driver
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device adb"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for the extended Fn keys on Apple notebooks with an ADB
interface.
.Sh HARDWARE
The
.Nm
driver supports extended keyboard keys (special F-keys) on the following devices:
.Pp
.Bl -bullet -compact
.It
Apple iBook Keyboard
.It
Apple PowerBook Keyboard
.El
.Sh EVENTS
The
.Nm
driver sends events to
.Xr devd 8
for the following events under the
.Cd PMU
system, and
.Cd keys
subsystem:
.Pp
.Bl -bullet -compact
.It
.Cd brightness
- Generates
.Cd up
and
.Cd down
notify types matching the pressed key.
.It
.Cd mute
.It
.Cd volume
- Generates
.Cd up
and
.Cd down
notify types matching the pressed key.
.It
.Cd eject
.El
.Pp
Examples are included in /etc/devd/apple.conf.
.Sh SEE ALSO
.Xr adb 4 ,
.Xr akbd 4 ,
.Xr cuda 4 ,
.Xr pmu 4 ,
.Xr devd 8
.Sh HISTORY
The
.Nm
device driver first appeared in
.Nx 5.0
and was ported to
.Fx 10.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Tsubai Masanari
for
.Nx
and ported to
.Fx
by
.An Justin Hibbits .