Index: src/share/man/man4/led.4
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RCS file: src/share/man/man4/led.4
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+.\"	$NetBSD$
+.\"
+.\" Copyright (c) 2020 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Julian Coleman.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd November 15, 2020
+.Dt LED 4
+.Os
+.Sh NAME
+.Nm led
+.Nd Generic LED driver
+.Sh DESCRIPTION
+The
+.Nm
+framework exposes controllable LED's through a
+.Xr sysctl
+hw.led.* subtree.
+A value of 1 means that the corresponding LED is lit, and a value of 0
+means that it is unlit.
+Writing a value of 1 will switch on the LED, and writing a value of 0
+will switch it off.
+.Sh SEE ALSO
+.Xr sysctl 7
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Nx 9.0 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Jared McNeill Aq Mt jmcneill@netbsd.org .