qmk_firmware/led.h

#ifndef LED_H
#define LED_H
#include "stdint.h"


/* keyboard LEDs */
#define USB_LED_NUM_LOCK                0
#define USB_LED_CAPS_LOCK               1
#define USB_LED_SCROLL_LOCK             2
#define USB_LED_COMPOSE                 3
#define USB_LED_KANA                    4


void led_set(uint8_t usb_led);

#endif