Clevo backlit keyboard

backlit.sh

#!/bin/bash

BLACK=000
BLUE=001
RED=010
MAGENTA=011
GREEN=100
AQUA=101
YELLOW=110
WHITE=111

KBLED=/sys/devices/platform/clevo_wmi/kbled

function setBrightness {
    echo $1 > $KBLED/brightness
}

function setColor {
    echo $1 > $KBLED/$2
}

function setColors {
    setColor $1 left
    setColor $1 middle
    setColor $1 right
}

function setColors2 {
    setColor $1 left
    setColor $2 middle
    setColor $3 right
    setBrightness $4
}

function test1 {
    while [ 1 -eq 1 ]; do
        setColors $BLUE
        sleep 0.5s
        setColors $AQUA
        sleep 0.5s
        setColors $WHITE
        sleep 0.5s
    done
}

function test2 {
    local A=($BLACK $WHITE $BLACK $RED $BLACK $BLUE $BLACK $MAGENTA $BLACK $AQUA $BLACK $YELLOW $BLACK $GREEN)
    local L=0
    local M=1
    local R=2
    local B=10

    while [ 1 -eq 1 ]; do
        while [ 1 -eq 1 ]; do
            setColors2 ${A[$L]} ${A[$M]} ${A[$R]} $B
            sleep 0.1s

            ((L++))
            if [ $L -eq ${#A[@]} ]; then
                L=0
            fi

            M=$(($L+1))
            if [ $M -eq ${#A[@]} ]; then
                M=0
            fi

            R=$((M+1))
            if [ $R -eq ${#A[@]} ]; then
                R=0
            fi
        done
    done
}

test2