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-rw-r--r--docs/feature_rgb_matrix.md52
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diff --git a/docs/feature_rgb_matrix.md b/docs/feature_rgb_matrix.md
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--- 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}