diff --git a/pyad2usb/devices.py b/pyad2usb/devices.py
index 183fa9e..f95fc8c 100644
--- a/pyad2usb/devices.py
+++ b/pyad2usb/devices.py
@@ -107,6 +107,7 @@ class USBDevice(Device):
         self._device = Ftdi()
         self._running = False
         self._interface = interface
+        self._id = ''
 
         self._read_thread = Device.ReadThread(self)
 
@@ -137,6 +138,8 @@ class USBDevice(Device):
                              self._description)
 
             self._device.set_baudrate(baudrate)
+
+            self._id = 'USB {0}:{1}'.format(self._device.usb_dev.bus, self._device.usb_dev.address)
         except (usb.core.USBError, FtdiError), err:
             self.on_close()
 
@@ -266,6 +269,7 @@ class SerialDevice(Device):
         self._buffer = ''
         self._running = False
         self._interface = interface
+        self._id = ''
 
     def __del__(self):
         """
@@ -293,6 +297,8 @@ class SerialDevice(Device):
         # Open the device and start up the reader thread.
         try:
             self._device.open()
+            self._id = '{0}'.format(self._interface)
+
         except (serial.SerialException, ValueError), err:
             self.on_close()
 
@@ -403,6 +409,7 @@ class SocketDevice(Device):
         self._device = None
         self._buffer = ''
         self._running = False
+        self._id = ''
 
         self._read_thread = Device.ReadThread(self)
 
@@ -422,6 +429,8 @@ class SocketDevice(Device):
         try:
             self._device = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
             self._device.connect((self._host, self._port))
+            self._id = '{0}:{1}'.format(self._host, self._port)
+
         except socket.error, err:
             self.on_close()
 
diff --git a/test.py b/test.py
index a86c2ff..4087790 100755
--- a/test.py
+++ b/test.py
@@ -114,6 +114,8 @@ def test_usb():
 
     a2u.open()
 
+    print dev._id
+
     while running:
         time.sleep(0.1)
 
@@ -130,6 +132,8 @@ def test_serial():
 
     a2u.open()
 
+    print dev._id
+
     while running:
         time.sleep(0.1)
 
@@ -145,6 +149,7 @@ def test_usb_serial():
     a2u.on_write += handle_write
 
     a2u.open(baudrate=115200)
+    print dev._id
 
     while running:
         time.sleep(0.1)
@@ -200,6 +205,8 @@ def test_socket():
 
     a2u.open()
 
+    print dev._id
+
     while running:
         time.sleep(0.1)
 
@@ -229,7 +236,7 @@ try:
     #test_usb_serial()
     #test_factory()
     #test_factory_watcher()
-    upload_usb()
+    #upload_usb()
     #upload_usb_serial()
 
     #test_socket()