1 files changed, 8 insertions, 2 deletions

diff --git a/keyboards/jj4x4/jj4x4.h b/keyboards/jj4x4/jj4x4.h
index 5a24b9033..7b8cb8183 100644
--- a/keyboards/jj4x4/jj4x4.h
+++ b/keyboards/jj4x4/jj4x4.h
@@ -19,8 +19,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "quantum.h"
 
-void matrix_init_user(void);  // TODO port this to other PS2AVRGB boards
-        
+/* This a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
 #define LAYOUT_ortho_4x4( \
         K01, K02, K03, K04, \
         K11, K12, K13, K14, \