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ACPI_FUJITSU(4)	       FreeBSD 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	13.0		       February	8, 2010			  FreeBSD 13.0
NAME | SYNOPSIS | DESCRIPTION | SYSCTL VARIABLES | EXAMPLES | SEE ALSO | HISTORY | AUTHORS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=acpi_fujitsu&sektion=4&manpath=FreeBSD+13.1-RELEASE+and+Ports>

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