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41 lines
761 B
Bash
41 lines
761 B
Bash
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#!/usr/bin/env bash
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BPATH="/sys/devices/platform/s3c24xx-pwm.0/pwm-backlight.0/backlight/pwm-backlight.0"
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MINB=0
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MAXB=$(cat ${BPATH}/max_brightness)
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CUR=$(cat ${BPATH}/brightness)
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C_STATE=$(((${CUR}*100)/${MAXB}))
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function list_brightness()
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{
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for val in 5 10 15 30 50 70 100
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do
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if [ ${val} -eq ${C_STATE} ]
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then
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echo "*${val} %"
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else
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echo "${val} %"
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fi
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done
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}
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if [ -z "$@" ]
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then
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list_brightness
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else
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if [ -n "$@" ]
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then
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if [[ ${@} =~ ^[0-9]+ ]]
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then
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VALUE=${@% *}
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notify-send "Set brightness to: ${VALUE} %"
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NEW_STATE=$((${VALUE}*${MAXB}/100))
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echo ${NEW_STATE} > ${BPATH}/brightness
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fi
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fi
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fi
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