From 4d4029afeb5f7f157712e05cc0bd5b27f7a86008 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Tue, 28 Nov 2017 14:43:36 -0600
Subject: [PATCH] Update README files

---
 configs/stm32f4discovery/README.txt | 34 +++++++++++++++++++++++++++++
 libnx/nxfonts/README.txt            | 10 ++++-----
 2 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/configs/stm32f4discovery/README.txt b/configs/stm32f4discovery/README.txt
index ccad49bab81..1cead4669e6 100644
--- a/configs/stm32f4discovery/README.txt
+++ b/configs/stm32f4discovery/README.txt
@@ -33,6 +33,7 @@ Contents
   - PWM
   - UARTs
   - Timer Inputs/Outputs
+  - Nintendo Wii Nunchuck
   - Quadrature Encoder
   - FPU
   - STM32F4DIS-BB
@@ -218,6 +219,39 @@ TIM14
    free I/O pins.
 ** Port H pins are not supported by the MCU
 
+Nintendo Wii Nunchuck:
+======================
+
+  There is a driver on NuttX to support Nintendo Wii Nunchuck Joystick. If you
+  want to use it please select these options:
+
+  - Enable the I2C1 at System Type -> STM32 Peripheral Support, it will enable:
+
+    CONFIG_STM32_I2C1=y
+
+  - Enable to Custom board/driver initialization at RTOS Features -> RTOS hooks
+
+    CONFIG_BOARD_INITIALIZE=y
+
+  - Enable the I2C Driver Support at Device Drivers, it will enable this symbol:
+
+    CONFIG_I2C=y
+
+  - Nintendo Wii Nunchuck Joystick at Device Drivers -> [*] Input Device Support
+
+    CONFIG_INPUT=y
+      CONFIG_INPUT_NUNCHUCK=y
+
+  - Enable the Nunchuck joystick example at Application Configuration -> Examples
+
+  CONFIG_EXAMPLES_NUNCHUCK=y
+    CONFIG_EXAMPLES_NUNCHUCK_DEVNAME="/dev/nunchuck0"
+
+  You need to connect GND and +3.3V pins from Nunchuck connector to GND and 3V
+  of stm32f4discovery respectively (Nunchuck also can work connected to 5V, but
+  I don't recommend it). Connect I2C Clock from Nunchuck to SCK (PB6) and the
+  I2C Data to SDA (PB9).
+
 Quadrature Encoder:
 ===================
 
diff --git a/libnx/nxfonts/README.txt b/libnx/nxfonts/README.txt
index 5a09ee19f04..457d290fd05 100644
--- a/libnx/nxfonts/README.txt
+++ b/libnx/nxfonts/README.txt
@@ -151,13 +151,13 @@ CONFIG_NXFONTS
 CONFIG_NXFONTS_CHARBITS
   The number of bits in the character set.  Current options are only 7 and 8.
   The default is 7.
-CONFIG_NX_DISABLE_1BPP, CONFIG_NX_DISABLE_2BPP,
-CONFIG_NX_DISABLE_4BPP, CONFIG_NX_DISABLE_8BPP,
-CONFIG_NX_DISABLE_16BPP, CONFIG_NX_DISABLE_24BPP, and
-CONFIG_NX_DISABLE_32BPP
+CONFIG_NXFONTS_DISABLE_1BPP, CONFIG_NXFONTS_DISABLE_2BPP,
+CONFIG_NXFONTS_DISABLE_4BPP, CONFIG_NXFONTS_DISABLE_8BPP,
+CONFIG_NXFONTS_DISABLE_16BPP, CONFIG_NXFONTS_DISABLE_24BPP, and
+CONFIG_NXFONTS_DISABLE_32BPP
   NX supports a variety of pixel depths.  You can save some memory by disabling
   support for unused color depths.
-CONFIG_NX_PACKEDMSFIRST
+CONFIG_NXFONTS_PACKEDMSFIRST
   If a pixel depth of less than 8-bits is used, then NX needs to know if the
   pixels pack from the MS to LS or from LS to MS