diff --git a/Source/Core/wiiuse/Src/ir.cpp b/Source/Core/wiiuse/Src/ir.cpp
new file mode 100644
index 0000000000..1a38fcac1d
--- /dev/null
+++ b/Source/Core/wiiuse/Src/ir.cpp
@@ -0,0 +1,135 @@
+/*
+ *	wiiuse
+ *
+ *	Written By:
+ *		Michael Laforest	< para >
+ *		Email: < thepara (--AT--) g m a i l [--DOT--] com >
+ *
+ *	Copyright 2006-2007
+ *
+ *	This file is part of wiiuse.
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *	$Header$
+ *
+ */
+
+/**
+ *	@file
+ *	@brief Handles IR data.
+ */
+
+#include <stdio.h>
+#include <math.h>
+
+#ifndef _WIN32
+	#include <unistd.h>
+#endif
+
+#include "Common.h"
+#include "wiiuse_internal.h"
+
+static int get_ir_sens(struct wiimote_t* wm, const char** block1, const char** block2);
+
+/**
+ *	@brief	Get the IR sensitivity settings.
+ *
+ *	@param wm		Pointer to a wiimote_t structure.
+ *	@param block1	[out] Pointer to where block1 will be set.
+ *	@param block2	[out] Pointer to where block2 will be set.
+ *
+ *	@return Returns the sensitivity level.
+ */
+static int get_ir_sens(struct wiimote_t* wm, const char** block1, const char** block2) {
+	if (WIIMOTE_IS_SET(wm, WIIMOTE_STATE_IR_SENS_LVL1)) {
+		*block1 = WM_IR_BLOCK1_LEVEL1;
+		*block2 = WM_IR_BLOCK2_LEVEL1;
+		return 1;
+	} else if (WIIMOTE_IS_SET(wm, WIIMOTE_STATE_IR_SENS_LVL2)) {
+		*block1 = WM_IR_BLOCK1_LEVEL2;
+		*block2 = WM_IR_BLOCK2_LEVEL2;
+		return 2;
+	} else if (WIIMOTE_IS_SET(wm, WIIMOTE_STATE_IR_SENS_LVL3)) {
+		*block1 = WM_IR_BLOCK1_LEVEL3;
+		*block2 = WM_IR_BLOCK2_LEVEL3;
+		return 3;
+	} else if (WIIMOTE_IS_SET(wm, WIIMOTE_STATE_IR_SENS_LVL4)) {
+		*block1 = WM_IR_BLOCK1_LEVEL4;
+		*block2 = WM_IR_BLOCK2_LEVEL4;
+		return 4;
+	} else if (WIIMOTE_IS_SET(wm, WIIMOTE_STATE_IR_SENS_LVL5)) {
+		*block1 = WM_IR_BLOCK1_LEVEL5;
+		*block2 = WM_IR_BLOCK2_LEVEL5;
+		return 5;
+	}
+
+	*block1 = NULL;
+	*block2 = NULL;
+	return 0;
+}
+
+
+/**
+ *	@brief	Set the IR sensitivity.
+ *
+ *	@param wm		Pointer to a wiimote_t structure.
+ *	@param level	1-5, same as Wii system sensitivity setting.
+ *
+ *	If the level is < 1, then level will be set to 1.
+ *	If the level is > 5, then level will be set to 5.
+ */
+void wiiuse_set_ir_sensitivity(struct wiimote_t* wm, int level) {
+	const char* block1 = NULL;
+	const char* block2 = NULL;
+
+	if (!wm)	return;
+
+	if (level > 5)		level = 5;
+	if (level < 1)		level = 1;
+
+	WIIMOTE_DISABLE_STATE(wm, (WIIMOTE_STATE_IR_SENS_LVL1 |
+								WIIMOTE_STATE_IR_SENS_LVL2 |
+								WIIMOTE_STATE_IR_SENS_LVL3 |
+								WIIMOTE_STATE_IR_SENS_LVL4 |
+								WIIMOTE_STATE_IR_SENS_LVL5));
+
+	switch (level) {
+		case 1:
+			WIIMOTE_ENABLE_STATE(wm, WIIMOTE_STATE_IR_SENS_LVL1);
+			break;
+		case 2:
+			WIIMOTE_ENABLE_STATE(wm, WIIMOTE_STATE_IR_SENS_LVL2);
+			break;
+		case 3:
+			WIIMOTE_ENABLE_STATE(wm, WIIMOTE_STATE_IR_SENS_LVL3);
+			break;
+		case 4:
+			WIIMOTE_ENABLE_STATE(wm, WIIMOTE_STATE_IR_SENS_LVL4);
+			break;
+		case 5:
+			WIIMOTE_ENABLE_STATE(wm, WIIMOTE_STATE_IR_SENS_LVL5);
+			break;
+		default:
+			return;
+	}
+
+	/* set the new sensitivity */
+	get_ir_sens(wm, &block1, &block2);
+
+	wiiuse_write_data(wm, WM_REG_IR_BLOCK1, (byte*)block1, 9);
+	wiiuse_write_data(wm, WM_REG_IR_BLOCK2, (byte*)block2, 2);
+
+	DEBUG_LOG(WIIMOTE, "Set IR sensitivity to level %i (unid %i)", level, wm->unid);
+}
diff --git a/Source/Core/wiiuse/Src/wiiuse_internal.h b/Source/Core/wiiuse/Src/wiiuse_internal.h
new file mode 100644
index 0000000000..391bbd89c9
--- /dev/null
+++ b/Source/Core/wiiuse/Src/wiiuse_internal.h
@@ -0,0 +1,163 @@
+/*
+ *	wiiuse
+ *
+ *	Written By:
+ *		Michael Laforest	< para >
+ *		Email: < thepara (--AT--) g m a i l [--DOT--] com >
+ *
+ *	Copyright 2006-2007
+ *
+ *	This file is part of wiiuse.
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 3 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *	$Header$
+ *
+ */
+
+/**
+ *	@file
+ *	@brief General internal wiiuse stuff.
+ *
+ *	Since Wiiuse is a library, wiiuse.h is a duplicate
+ *	of the API header.
+ *
+ *	The code that would normally go in that file, but
+ *	which is not needed by third party developers,
+ *	is put here.
+ *
+ *	So wiiuse_internal.h is included by other files
+ *	internally, wiiuse.h is included only here.
+ */
+
+#ifndef WIIUSE_INTERNAL_H_INCLUDED
+#define WIIUSE_INTERNAL_H_INCLUDED
+
+/* wiiuse version */
+#define WIIUSE_VERSION					"0.12"
+
+/********************
+ *
+ *	Wiimote internal codes
+ *
+ ********************/
+
+/* Communication channels */
+#define WM_OUTPUT_CHANNEL			0x11
+#define WM_INPUT_CHANNEL			0x13
+
+#define WM_SET_REPORT				0x50
+
+/* commands */
+#define WM_CMD_LED					0x11
+#define WM_CMD_REPORT_TYPE			0x12
+#define WM_CMD_RUMBLE				0x13
+#define WM_CMD_IR					0x13
+#define WM_CMD_CTRL_STATUS			0x15
+#define WM_CMD_SPEAKER_ENABLE		0x14// Size 1
+#define WM_CMD_WRITE_DATA			0x16
+#define WM_CMD_READ_DATA			0x17
+#define WM_CMD_SPEAKER_DATA			0x18// Size 21
+#define WM_CMD_SPEAKER_MUTE			0x19// Size 1
+#define WM_CMD_IR_2					0x1A
+
+
+#define WM_BT_INPUT					0x01
+#define WM_BT_OUTPUT				0x02
+
+/* Identify the wiimote device by its class */
+#define WM_DEV_CLASS_0				0x04
+#define WM_DEV_CLASS_1				0x25
+#define WM_DEV_CLASS_2				0x00
+#define WM_VENDOR_ID				0x057E
+#define WM_PRODUCT_ID				0x0306
+
+
+
+/* offsets in wiimote memory */
+#define WM_MEM_OFFSET_CALIBRATION	0x16
+
+#define WM_REG_IR_BLOCK1			0x04B00000
+#define WM_REG_IR_BLOCK2			0x04B0001A
+
+
+/* ir block data */
+#define WM_IR_BLOCK1_LEVEL1			"\x02\x00\x00\x71\x01\x00\x64\x00\xfe"
+#define WM_IR_BLOCK2_LEVEL1			"\xfd\x05"
+#define WM_IR_BLOCK1_LEVEL2			"\x02\x00\x00\x71\x01\x00\x96\x00\xb4"
+#define WM_IR_BLOCK2_LEVEL2			"\xb3\x04"
+#define WM_IR_BLOCK1_LEVEL3			"\x02\x00\x00\x71\x01\x00\xaa\x00\x64"
+#define WM_IR_BLOCK2_LEVEL3			"\x63\x03"
+#define WM_IR_BLOCK1_LEVEL4			"\x02\x00\x00\x71\x01\x00\xc8\x00\x36"
+#define WM_IR_BLOCK2_LEVEL4			"\x35\x03"
+#define WM_IR_BLOCK1_LEVEL5			"\x07\x00\x00\x71\x01\x00\x72\x00\x20"
+#define WM_IR_BLOCK2_LEVEL5			"\x1f\x03"
+
+#define WM_IR_TYPE_BASIC			0x01
+#define WM_IR_TYPE_EXTENDED			0x03
+#define WM_IR_TYPE_FULL				0x05
+
+
+
+
+/********************
+ *
+ *	End Wiimote internal codes
+ *
+ ********************/
+
+/* wiimote state flags - (some duplicated in wiiuse.h)*/
+#define WIIMOTE_STATE_DEV_FOUND				0x0001
+#define WIIMOTE_STATE_HANDSHAKE				0x0002	/* actual connection exists but no handshake yet */
+#define WIIMOTE_STATE_HANDSHAKE_COMPLETE	0x0004	/* actual connection exists but no handshake yet */
+#define WIIMOTE_STATE_CONNECTED				0x0008
+#define WIIMOTE_STATE_RUMBLE				0x0010
+#define WIIMOTE_STATE_ACC					0x0020
+#define WIIMOTE_STATE_EXP					0x0040
+#define WIIMOTE_STATE_IR					0x0080
+#define WIIMOTE_STATE_SPEAKER				0x0100
+#define WIIMOTE_STATE_IR_SENS_LVL1			0x0200
+#define WIIMOTE_STATE_IR_SENS_LVL2			0x0400
+#define WIIMOTE_STATE_IR_SENS_LVL3			0x0800
+#define WIIMOTE_STATE_IR_SENS_LVL4			0x1000
+#define WIIMOTE_STATE_IR_SENS_LVL5			0x2000
+
+#define WIIMOTE_INIT_STATES					(WIIMOTE_STATE_IR_SENS_LVL3)
+
+/* macro to manage states */
+#define WIIMOTE_IS_SET(wm, s)			((wm->state & (s)) == (s))
+#define WIIMOTE_ENABLE_STATE(wm, s)		(wm->state |= (s))
+#define WIIMOTE_DISABLE_STATE(wm, s)	(wm->state &= ~(s))
+#define WIIMOTE_TOGGLE_STATE(wm, s)		((wm->state & (s)) ? WIIMOTE_DISABLE_STATE(wm, s) : WIIMOTE_ENABLE_STATE(wm, s))
+
+#define WIIMOTE_IS_FLAG_SET(wm, s)		((wm->flags & (s)) == (s))
+#define WIIMOTE_ENABLE_FLAG(wm, s)		(wm->flags |= (s))
+#define WIIMOTE_DISABLE_FLAG(wm, s)		(wm->flags &= ~(s))
+#define WIIMOTE_TOGGLE_FLAG(wm, s)		((wm->flags & (s)) ? WIIMOTE_DISABLE_FLAG(wm, s) : WIIMOTE_ENABLE_FLAG(wm, s))
+
+#define NUNCHUK_IS_FLAG_SET(wm, s)		((*(wm->flags) & (s)) == (s))
+
+/* misc macros */
+#define WIIMOTE_ID(wm)					(wm->unid)
+#define WIIMOTE_IS_CONNECTED(wm)		(WIIMOTE_IS_SET(wm, WIIMOTE_STATE_CONNECTED))
+
+
+
+#include "wiiuse.h"
+
+/* not part of the api */
+int wiiuse_set_report_type(struct wiimote_t* wm);
+int wiiuse_send(struct wiimote_t* wm, byte report_type, byte* msg, int len);
+
+#endif /* WIIUSE_INTERNAL_H_INCLUDED */