qmk_firmware/quantum/template/template.h

#ifndef %KEYBOARD_UPPERCASE%_H
#define %KEYBOARD_UPPERCASE%_H

#include "matrix.h"
#include "keymap_common.h"
#include "backlight.h"
#include <stddef.h>

// This a shortcut to help you visually see your layout.
// The following is an example using the Planck MIT layout
// The first section contains all of the arguements
// The second converts the arguments into a two-dimensional array
#define KEYMAP( \
	k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
	k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b, \
	k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b, \
	k30, k31, k32, k33, k34,    k35,   k37, k38, k39, k3a, k3b \
) \
{ \
	{ k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b }, \
	{ k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b }, \
	{ k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b }, \
	{ k30, k31, k32, k33, k34, k35, k35, k37, k38, k39, k3a, k3b } \
} 

void * matrix_init_user(void);
void * matrix_scan_user(void);

#endif