1 files changed, 50 insertions, 2 deletions

diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
index ed33c7ea4e..4f827f8dc9 100644
--- a/docs/feature_rgb_matrix.md
+++ b/docs/feature_rgb_matrix.md
@@ -1,8 +1,12 @@
 # RGB Matrix Lighting
 
+## Driver configuration
+
+### IS31FL3731
+
 There is basic support for addressable RGB matrix lighting with the I2C IS31FL3731 RGB controller. To enable it, add this to your `rules.mk`:
 
-    RGB_MATRIX_ENABLE = yes
+    RGB_MATRIX_ENABLE = IS31FL3731
 
 Configure the hardware via your `config.h`:
 
@@ -36,7 +40,51 @@ Define these arrays listing all the LEDs in your `<keyboard>.c`:
 	    ....
 	}
 
-Where `Cx_y` is the location of the LED in the matrix defined by [the datasheet](http://www.issi.com/WW/pdf/31FL3731.pdf). The `driver` is the index of the driver you defined in your `config.h` (`0` or `1` right now).
+Where `Cx_y` is the location of the LED in the matrix defined by [the datasheet](http://www.issi.com/WW/pdf/31FL3731.pdf) and the header file `drivers/issi/is31fl3731.h`. The `driver` is the index of the driver you defined in your `config.h` (`0` or `1` right now).
+
+###  IS31FL3733
+
+There is basic support for addressable RGB matrix lighting with the I2C IS31FL3733 RGB controller. To enable it, add this to your `rules.mk`:
+
+    RGB_MATRIX_ENABLE = IS31FL3733
+
+Configure the hardware via your `config.h`:
+
+	// This is a 7-bit address, that gets left-shifted and bit 0
+	// set to 0 for write, 1 for read (as per I2C protocol)
+	// The address will vary depending on your wiring:
+	// 00 <-> GND
+	// 01 <-> SCL
+	// 10 <-> SDA
+	// 11 <-> VCC
+	// ADDR1 represents A1:A0 of the 7-bit address.
+	// ADDR2 represents A3:A2 of the 7-bit address.
+	// The result is: 0b101(ADDR2)(ADDR1)
+	#define DRIVER_ADDR_1 0b1010000
+	#define DRIVER_ADDR_2 0b1010000 // this is here for compliancy reasons.
+
+	#define DRIVER_COUNT 1
+	#define DRIVER_1_LED_TOTAL 64
+	#define DRIVER_LED_TOTAL DRIVER_1_LED_TOTAL
+
+Currently only a single drivers is supported, but it would be trivial to support all 4 combinations. For now define `DRIVER_ADDR_2` as `DRIVER_ADDR_1`
+
+Define these arrays listing all the LEDs in your `<keyboard>.c`:
+
+	const is31_led g_is31_leds[DRIVER_LED_TOTAL] = {
+	/* Refer to IS31 manual for these locations
+	 *   driver
+	 *   |  R location
+	 *   |  |       G location
+	 *   |  |       |       B location
+	 *   |  |       |       | */
+	    {0, B_1,    A_1,    C_1},
+	    ....
+	}
+
+Where `X_Y` is the location of the LED in the matrix defined by [the datasheet](http://www.issi.com/WW/pdf/31FL3733.pdf) and the header file `drivers/issi/is31fl3733.h`. The `driver` is the index of the driver you defined in your `config.h` (Only `0` right now).
+
+From this point forward the configuration is the same for all the drivers. 
 
 	const rgb_led g_rgb_leds[DRIVER_LED_TOTAL] = {
 	/* {row | col << 4}