qmk-firmware/keyboard/clueboard1/clueboard1.c

#include "clueboard1.h"

__attribute__ ((weak))
void matrix_init_user(void) {
	// leave these blank
}

__attribute__ ((weak))
void matrix_scan_user(void) {
	// leave these blank
}

void matrix_init_kb(void) {
	matrix_init_user();
}

void matrix_scan_kb(void) {
	matrix_scan_user();
}