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
<
[email protected]>, Anish Mistry <
[email protected]>, and Marc Santcroos
<
[email protected]>.
This manual page was written by Philip Paeps <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 February 8, 2010 FreeBSD 14.1-RELEASE-p8