diff --git a/src/app/App.java b/src/app/App.java
index c509962..8de6d69 100644
--- a/src/app/App.java
+++ b/src/app/App.java
@@ -24,7 +24,8 @@ public class App
 	public void parseArguments(){
 		if(this.leftColor!=null || this.rightColor!=null || this.middleColor!=null){
 			try {
-				DriverTypeA device=new Device_1770_ff00();
+				DriverTypeA device=new Driver_1770_ff00();
+				
 				if(this.leftColor==null)
 					this.leftColor="OFF";
 				if(this.middleColor==null)
@@ -35,7 +36,7 @@ public class App
 				device.setRegionColor(Region.MIDDLE, Color.valueOf(middleColor), Intensity.HIGH);
 				device.setRegionColor(Region.RIGHT, Color.valueOf(rightColor), Intensity.HIGH);
 
-			} catch (InstantiationException e) {
+			} catch (Exception e) {
 				// TODO Auto-generated catch block
 				e.printStackTrace();
 			}
@@ -51,6 +52,6 @@ public class App
     	 parser.parseArgument(args);
     	app.parseArguments();
     	new MainWindow();
-    	
+
     }
 }
diff --git a/src/client/MainWindow.java b/src/client/MainWindow.java
index b60b9ec..1f24f64 100644
--- a/src/client/MainWindow.java
+++ b/src/client/MainWindow.java
@@ -23,16 +23,26 @@ public class MainWindow extends JFrame {
 	private JComboBox<Color> right;
 	private JButton apply=new JButton("Apply");
 	
-	private DriverTypeA keyboard;
+	private DriverTypeA keyboardTypeA;
+	private Class<?> driverType;
+	private DriverManager drvMan=new DriverManager();
 	
 	public MainWindow() throws InstantiationException{
 		this.initUI();
-		this.keyboard=new Device_1770_ff00();
+		Driver drv=drvMan.getDevice();
+		if(drv==null){
+			System.err.println("No driver avalaible (try as root)");
+			System.exit(1);
+		}
+		else{
+			this.driverType=drv.getType();
+			this.keyboardTypeA=(DriverTypeA) drv;
+		}
+		
 		this.left=new JComboBox<>(Color.values());
 		this.middle=new JComboBox<>(Color.values());
 		this.right=new JComboBox<>(Color.values());
 		
-		
 		this.apply.addActionListener(new ActionListener() {
 			
 			@Override
@@ -41,9 +51,9 @@ public class MainWindow extends JFrame {
 				Color middleRegion=(Color) middle.getSelectedItem();
 				Color rightRegion=(Color) right.getSelectedItem();
 
-				keyboard.setRegionColor(Region.LEFT, leftRegion, Intensity.HIGH);
-				keyboard.setRegionColor(Region.MIDDLE, middleRegion, Intensity.HIGH);
-				keyboard.setRegionColor(Region.RIGHT, rightRegion, Intensity.HIGH);
+				keyboardTypeA.setRegionColor(Region.LEFT, leftRegion, Intensity.HIGH);
+				keyboardTypeA.setRegionColor(Region.MIDDLE, middleRegion, Intensity.HIGH);
+				keyboardTypeA.setRegionColor(Region.RIGHT, rightRegion, Intensity.HIGH);
 
 				
 			}
diff --git a/src/drivers/Driver.java b/src/drivers/Driver.java
new file mode 100644
index 0000000..d362d19
--- /dev/null
+++ b/src/drivers/Driver.java
@@ -0,0 +1,25 @@
+package org.manzerbredes.open_klm.drivers;
+
+
+/**
+ * Driver must implement this interface
+ * 
+ * @author Manzerbredes
+ *
+ */
+public interface Driver{
+	
+	/**
+	 * Get the type of the driver
+	 * 
+	 * @return class that represent the type of the driver (DriverTypeA.class for example)
+	 */
+	public Class<?> getType();
+	
+	/**
+	 * Initialise the driver (do not initialise anything in the constructor).
+	 * 
+	 * @return true if success (device is present and accessible) false else.
+	 */
+	public boolean initDriver();
+}
\ No newline at end of file
diff --git a/src/drivers/DriverManager.java b/src/drivers/DriverManager.java
new file mode 100644
index 0000000..9a3c37c
--- /dev/null
+++ b/src/drivers/DriverManager.java
@@ -0,0 +1,48 @@
+package org.manzerbredes.open_klm.drivers;
+
+
+/**
+ * Driver Manager
+ * 
+ * @author Manzerbredes
+ *
+ */
+public class DriverManager{
+	
+	/**
+	 * List of avalaible drivers
+	 */
+	private Class<?>[] drivers={
+		Driver_1770_ff00.class
+	};
+	
+	
+	
+	/**
+	 * Get a successfully loaded driver
+	 * 
+	 * @return Driver the loaded driver.
+	 */
+	public Driver getDevice(){
+		// Walk on driver list
+		for(int i=0;i<this.drivers.length;i++){
+			// Try to load each drivers
+			try {
+				Driver drv=(Driver) this.drivers[i].newInstance();
+				// If success return it
+				if(drv.initDriver())
+					return drv;
+			} catch (Exception e) {
+				e.printStackTrace();
+			}
+		}
+		// If no driver avalaible
+		return null;
+	}
+	
+	
+	
+	
+	
+	
+}
\ No newline at end of file
diff --git a/src/drivers/DriverTypeA.java b/src/drivers/DriverTypeA.java
index 37e8d4c..e7048df 100644
--- a/src/drivers/DriverTypeA.java
+++ b/src/drivers/DriverTypeA.java
@@ -1,7 +1,7 @@
 package org.manzerbredes.open_klm.drivers;
 
 /**
- * Basic driver with basic functionalities.
+ * Driver of type A (driver with is own functionalities).
  * 
  * @author Manzerbredes
  *
diff --git a/src/drivers/Device_1770_ff00.java b/src/drivers/Driver_1770_ff00.java
similarity index 86%
rename from src/drivers/Device_1770_ff00.java
rename to src/drivers/Driver_1770_ff00.java
index 77ee461..9f849f9 100644
--- a/src/drivers/Device_1770_ff00.java
+++ b/src/drivers/Driver_1770_ff00.java
@@ -14,7 +14,7 @@ import com.codeminders.hidapi.*;
  * @author Manzerbredes
  *
  */
-public class Device_1770_ff00 implements DriverTypeA{
+public class Driver_1770_ff00 implements Driver, DriverTypeA{
 	
 	
 	
@@ -32,17 +32,10 @@ public class Device_1770_ff00 implements DriverTypeA{
 	 * Define Keyboard mode state
 	 */
 	private Mode mode=Mode.NORMAL;
-	
-	
-	
-	
-	
-	/**
-	 * Init driver and HIDAPI library
-	 * 
-	 * @throws InstantiationException 
-	 */
-	public Device_1770_ff00() throws InstantiationException{
+
+
+	@Override
+	public boolean initDriver(){
 		// Init HIDAPI Library
 		com.codeminders.hidapi.ClassPathLibraryLoader.loadNativeHIDLibrary();
 		
@@ -50,13 +43,13 @@ public class Device_1770_ff00 implements DriverTypeA{
 		try {
 			HIDManager man=HIDManager.getInstance();
 			this.device=man.openById(0x1770, 0xff00, null);
-			if(this.device==null)
-				throw new Exception();
+			if(this.device!=null)
+				return true;
 		}
 		catch(Exception e){
-			throw new InstantiationException("Failed to instanciate driver. Device not found or permission denied (try as root)");
+			System.err.println(e.getMessage());
 		}
-		
+		return false;
 	}
 	
 	
@@ -90,7 +83,9 @@ public class Device_1770_ff00 implements DriverTypeA{
 
 
 	
-
+	/**
+	 * Commit (apply current mode to update the color)
+	 */
 	private void commit(){
 		try {
 			this.device.sendFeatureReport(this.getReport(1,2,65,this.mode.intValue(),0,0,0,236));
@@ -135,5 +130,15 @@ public class Device_1770_ff00 implements DriverTypeA{
 		this.mode=mode;
 		this.commit();
 	}
-	
+
+
+	@Override
+	public Class<?> getType() {
+		return DriverTypeA.class;
+	}
+
+
+
+
+
 }
\ No newline at end of file