commit fe4f16452c48e61c82fd8e863ecf6f7c524ec11e · yemou.pink/scripts

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scritps/ds4-leds
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       #!/bin/sh

     

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       # Change the LEDs of a DualShock4 Controller

     

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       usage() {

     

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       	printf '%s\n' "usage: ${0##*/} hex|rgb color" \

     

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       	              "${0##*/} accepts hex values (ffffff) or rgb values (255,255,255)"

     

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       }

     

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       [ "$2" ] || { usage; exit 1; }

     

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       hex2rgb() {

     

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       	hex=$1

     

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       	hex_r=${hex%????}

     

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       	hex_g=${hex#??}; hex_g=${hex_g%??}

     

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       	hex_b=${hex#????}

     

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       	printf '%d,%d,%d' "0x$hex_r" "0x$hex_g" "0x$hex_b"

     

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       }

     

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       ds4leds() {

     

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       	vendorid="054C"

     

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       	productid="05C4"

     

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       	led_path="/sys/class/leds"

     

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       	IFS=, read -r rgb_r rgb_g rgb_b <<-EOF

     

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       	$1

     

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       	EOF

     

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       	printf '%s' "$rgb_r" | tee "$led_path/"*"$vendorid:$productid"*":red/brightness" > /dev/null

     

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       	printf '%s' "$rgb_g" | tee "$led_path/"*"$vendorid:$productid"*":green/brightness" > /dev/null

     

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       	printf '%s' "$rgb_b" | tee "$led_path/"*"$vendorid:$productid"*":blue/brightness" > /dev/null

     

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       }

     

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       case $1 in

     

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       	hex      ) ds4leds "$(hex2rgb "$2")" ;;

     

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       	rgb      ) ds4leds "$2" ;;

     

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       	*h|*help ) usage; exit 0 ;;

     

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       esac