keychron_qmk_firmware/keyboards/handwired/dactyl_promicro/dactyl_promicro.c

#include "dactyl_promicro.h"

#ifdef SSD1306OLED
void led_set_kb(uint8_t usb_led) {
    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
    led_set_user(usb_led);
}
#endif

void matrix_init_kb(void) {
	matrix_init_user();
};