/ { kscan { compatible = "gpio-kscan"; label = "Handwired GPIO KSCAN matrix"; row-gpios = <&arduino_header 8 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>, <&arduino_header 10 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; col-gpios = <&arduino_header 13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>, <&arduino_header 14 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; }; };