acpilid(4) [netbsd man page]

ACPILID(4)						   BSD Kernel Interfaces Manual 						ACPILID(4)

NAME

     acpilid -- ACPI Lid Switch

SYNOPSIS

     acpilid* at acpi?

DESCRIPTION

     The acpilid driver supports ACPI ``lid switches''.  The powerd(8) daemon can be used to control actions against the events of opening or
     closing the lid.  The script used is /etc/powerd/scripts/lid_switch, and the events are either pressed (the lid was closed) or released (the
     lid was opened).

EXAMPLES

     The following example modifies the mentioned script in order to put the system into (S3) sleep when the lid is closed:

	   ...

	   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

	   ...

SEE ALSO

     acpi(4), powerd(8), sysmon_pswitch(9)

HISTORY

     The acpilid driver appeared in NetBSD 1.6.

BSD
								  January 9, 2011							       BSD

SYSMON_PSWITCH(9)					   BSD Kernel Developer's Manual					 SYSMON_PSWITCH(9)

NAME

     sysmon_pswitch -- framework for power switches

SYNOPSIS

     #include <dev/sysmon/sysmonvar.h>

     int
     sysmon_pswitch_register(struct sysmon_pswitch *smpsw);

     void
     sysmon_pswitch_unregister(struct sysmon_pswitch *smpsw);

     void
     sysmon_pswitch_event(struct sysmon_pswitch *smpsw, int event);

DESCRIPTION

     The machine-independent sysmon_pswitch provides a framework for power management.	The interface has been largely superceded by the pmf(9)
     framework, but sysmon_pswitch is still used to manage power switches as well as related mechanical adapters and buttons.  These are encapsu-
     lated in the following structure:

     struct sysmon_pswitch {
	     const char *smpsw_name;	     /* power switch name */
	     int smpsw_type;		     /* power switch type */

	     LIST_ENTRY(sysmon_pswitch) smpsw_list;
     };

     Unsurprisingly, smpsw_name specifies the name of the power switch and smpsw_type defines the type of it.  The following types are defined:

	   PSWITCH_TYPE_POWER
	   PSWITCH_TYPE_SLEEP
	   PSWITCH_TYPE_LID
	   PSWITCH_TYPE_RESET
	   PSWITCH_TYPE_ACADAPTER
	   PSWITCH_TYPE_HOTKEY

     If the type is PSWITCH_TYPE_HOTKEY, there are few predefined names that can be used for smpsw_name:

	   PSWITCH_HK_DISPLAY_CYCLE  display-cycle
	   PSWITCH_HK_LOCK_SCREEN    lock-screen
	   PSWITCH_HK_BATTERY_INFO   battery-info
	   PSWITCH_HK_EJECT_BUTTON   eject-button
	   PSWITCH_HK_ZOOM_BUTTON    zoom-button
	   PSWITCH_HK_VENDOR_BUTTON  vendor-button

     Once a power switch event has been proceeded, sysmon_pswitch will inform the user space powerd(8), which will possibly execute a script
     matching the type of the power switch.

FUNCTIONS

     After the sysmon_pswitch structure has been initialized, a new power switch device can be registered by using sysmon_pswitch_register().  The
     device can be detached from the framework by sysmon_pswitch_unregister().

     The sysmon_pswitch_event() is used to signal a new power switch event.  There are two possibilities for the value of event:

	   PSWITCH_EVENT_PRESSED     A button has been pressed, the lid has been closed, the AC adapter is off, etc.

	   PSWITCH_EVENT_RELEASED    A button has been released, the lid is open, the AC adapter is on, etc.

     The corresponding events in powerd(8) are pressed and released.

SEE ALSO

     powerd(8), pmf(9), sysmon_envsys(9), sysmon_taskq(9)

AUTHORS

     Jason R. Thorpe <thorpej@NetBSD.org>

BSD
								 January 26, 2010							       BSD