Add documentation for led matrix

[qmk_firmware.git] / quantum / config_common.h

diff --git a/quantum/config_common.h b/quantum/config_common.h
index 606cd9381ae02a9587d258e20fce4603e7998cca..0b2e408a43f238e5b5ad7d04942f12a1b4649667 100644 (file)
--- a/quantum/config_common.h
+++ b/quantum/config_common.h
@@ -21,6 +21,9 @@
 #define ROW2COL       1
 #define CUSTOM_MATRIX 2 /* Disables built-in matrix scanning code */
 
+// useful for direct pin mapping
+#define NO_PIN (~0)
+
 #ifdef __AVR__
     #ifndef __ASSEMBLER__
       #include <avr/io.h>