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ACPI_FUJITSU(4)		    Kernel Interfaces Manual	       ACPI_FUJITSU(4)

NAME
       acpi_fujitsu -- Fujitsu Laptop Extras

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

	     device acpi_fujitsu

       Alternatively, to load the driver as a module at	boot time,  place  the
       following line in loader.conf(5):

	     acpi_fujitsu_load="YES"

DESCRIPTION
       The  acpi_fujitsu driver	enables	the ACPI-controlled buttons on Fujitsu
       notebooks.  The button events are sent to userspace via devd(8),	and  a
       sysctl(8) interface is provided to simulate the hardware	events.

       Using  this  driver, one	can control the	brightness of the display, the
       volume of the speakers, and the internal	(eraserhead) mouse pointer.

SYSCTL VARIABLES
       These sysctls are currently implemented:

       hw.acpi.fujitsu.lcd_brightness
	       Makes the LCD backlight brighter	or dimmer.

       hw.acpi.fujitsu.pointer_enable
	       Enables or disables the internal	mouse pointer.

       hw.acpi.fujitsu.volume
	       Controls	the speaker volume.

       hw.acpi.fujitsu.mute
	       Mutes the speakers.

       Defaults	for these sysctls can be set in	sysctl.conf(5).

EXAMPLES
       The following can be added to devd.conf(5)  in  order  to  pass	button
       events to a /usr/local/sbin/acpi_oem_exec.sh script:

	     notify 10 {
		     match "system"	     "ACPI";
		     match "subsystem"	     "FUJITSU";
		     action "/usr/local/sbin/acpi_oem_exec.sh $notify fujitsu";
	     };

       A possible /usr/local/sbin/acpi_oem_exec.sh script might	look like:

	     #!/bin/sh
	     #
	     if	[ "$1" = "" -o "$2" = "" ]
	     then
		     echo "usage: $0 notify oem_name"
		     exit 1
	     fi
	     NOTIFY=`echo $1`
	     LOGGER="logger"
	     CALC="bc"
	     BC_PRECOMMANDS="scale=2"
	     ECHO="echo"
	     CUT="cut"
	     MAX_LCD_BRIGHTNESS=7
	     MAX_VOLUME=16
	     OEM=$2
	     DISPLAY_PIPE=/tmp/acpi_${OEM}_display

	     case ${NOTIFY} in
		     0x00)
			     LEVEL=`sysctl -n hw.acpi.${OEM}.mute`
			     if	[ "$LEVEL" = "1" ]
			     then
				     MESSAGE="volume muted"
			     else
				     MESSAGE="volume unmuted"
			     fi
			     ;;
		     0x01)
			     LEVEL=`sysctl -n hw.acpi.${OEM}.pointer_enable`
			     if	[ "$LEVEL" = "1" ]
			     then
				     MESSAGE="pointer enabled"
			     else
				     MESSAGE="pointer disabled"
			     fi
			     ;;
		     0x02)
			     LEVEL=`sysctl -n hw.acpi.${OEM}.lcd_brightness`
			     PERCENT=`${ECHO} "${BC_PRECOMMANDS} ; \
				      ${LEVEL} / ${MAX_LCD_BRIGHTNESS} * 100" |\
				      ${CALC} |	${CUT} -d . -f 1`
			     MESSAGE="brightness level ${PERCENT}%"
			     ;;
		     0x03)
			     LEVEL=`sysctl -n hw.acpi.${OEM}.volume`
			     PERCENT=`${ECHO} "${BC_PRECOMMANDS} ; \
				     ${LEVEL} /	${MAX_VOLUME} *	100" | \
				      ${CALC} |	${CUT} -d . -f 1`
			     MESSAGE="volume level ${PERCENT}%"
			     ;;
		     *)
			     ;;
		     esac
		     ${LOGGER} ${MESSAGE}
		     if	[ -p ${DISPLAY_PIPE} ]
		     then
			     ${ECHO} ${MESSAGE}	>> ${DISPLAY_PIPE} &
		     fi
	     exit 0

SEE ALSO
       acpi(4),	sysctl.conf(5),	devd(8), sysctl(8)

HISTORY
       The acpi_fujitsu	driver first appeared in FreeBSD 5.4.

AUTHORS
       The    acpi_fujitsu    driver	was   written	by   Sean   Bullington
       <shegget@gmail.com>,  Anish   Mistry   <mistry.7@osu.edu>,   and	  Marc
       Santcroos <marks@ripe.net>.

       This manual page	was written by Philip Paeps <philip@FreeBSD.org>.

FreeBSD	14.3		       February	8, 2010		       ACPI_FUJITSU(4)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=acpi_fujitsu&sektion=4&manpath=FreeBSD+14.3-RELEASE+and+Ports>

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