diff --git a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
index 53e7c7d..caaa4ec 100644
--- a/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
+++ b/UsbSerialLibrary/src/com/hoho/android/usbserial/driver/FtdiSerialDriver.java
@@ -90,9 +90,9 @@ import java.util.Map;
 public class FtdiSerialDriver extends CommonUsbSerialDriver {
 
     public static final int USB_TYPE_STANDARD = 0x00 << 5;
-    public static final int USB_TYPE_CLASS = 0x00 << 5;
-    public static final int USB_TYPE_VENDOR = 0x00 << 5;
-    public static final int USB_TYPE_RESERVED = 0x00 << 5;
+    public static final int USB_TYPE_CLASS = 0x01 << 5;
+    public static final int USB_TYPE_VENDOR = 0x02 << 5;
+    public static final int USB_TYPE_RESERVED = 0x03 << 5;
 
     public static final int USB_RECIP_DEVICE = 0x00;
     public static final int USB_RECIP_INTERFACE = 0x01;