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+.\" $NetBSD: acpilid.4,v 1.8 2017/07/03 21:30:58 wiz Exp $
+.\"
+.\" Copyright (c) 2002, 2004 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" 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 January 9, 2011
+.Dt ACPILID 4
+.Os
+.Sh NAME
+.Nm acpilid
+.Nd ACPI Lid Switch
+.Sh SYNOPSIS
+.Cd "acpilid* at acpi?"
+.Sh DESCRIPTION
+The
+.Nm
+driver supports
+.Tn ACPI
+.Dq lid switches .
+The
+.Xr powerd 8
+daemon can be used to control actions against
+the events of opening or closing the lid.
+The script used is
+.Pa /etc/powerd/scripts/lid_switch ,
+and the events are either
+.Em pressed
+(the lid was closed)
+or
+.Em released
+(the lid was opened).
+.Sh EXAMPLES
+The following example modifies the mentioned script in order to put the
+system into
+.Pq Tn S3
+sleep when the lid is closed:
+.Bd -literal -offset indent
+\&...
+
+case "${2}" in
+pressed)
+ logger -p info "${0}: suspending..."
+
+ # As in sleep_button, kill some daemons.
+ #
+ /etc/rc.d/dhcpcd stop
+ /etc/rc.d/network stop
+ /etc/rc.d/wpa_supplicant stop
+
+ # Suspend.
+ #
+ if /sbin/sysctl hw.acpi.sleep.state >/dev/null 2>&1; then
+ /sbin/sysctl -w hw.acpi.sleep.state=3
+ fi
+
+ # Waking up.
+ #
+ /etc/rc.d/wpa_supplicant start
+ /etc/rc.d/network start
+ /etc/rc.d/dhcpcd start
+
+\&...
+.Ed
+.Sh SEE ALSO
+.Xr acpi 4 ,
+.Xr powerd 8 ,
+.Xr sysmon_pswitch 9
+.Sh HISTORY
+The
+.Nm
+driver
+appeared in
+.Nx 1.6 .