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#!/usr/bin/env sh
[ -e /sys/class/backlight/edp-backlight ] && DEV=/sys/class/backlight/edp-backlight
[ -e /sys/devices/platform/backlight/backlight/backlight ] && DEV=/sys/devices/platform/backlight/backlight/backlight
MAX=$(cat $DEV/max_brightness)
MIN=2
STEP=$(echo "($MAX - $MIN) / 10" | bc)
setdelta() {
sxmo_setpinebacklight $(
cat $DEV/brightness |
xargs -IB echo B $1 |
bc |
xargs -INUM echo -e "$MIN\nNUM" | sort -n | tail -n1 |
xargs -INUM echo -e "$MAX\nNUM" | sort -n | head -n1
)
sxmo_notify.sh 200 "Backlight $(cat $DEV/brightness)/${MAX}"
}
up() {
setdelta "+${STEP}"
}
down() {
setdelta "-${STEP}"
}
$1 $2