acpi_fujitsu4
Fujitsu laptop extras
Usage
device acpi_fujitsu
Overview
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