diff -ur a/usb/backend/__init__.py b/usb/backend/__init__.py
--- a/usb/backend/__init__.py	2010-12-15 10:40:52.000000000 +0100
+++ b/usb/backend/__init__.py	2011-03-15 17:01:35.000000000 +0100
@@ -176,6 +176,14 @@
         """
         _not_implemented(self.close_device)
 
+    def get_bus_number(self, dev):
+        r"""Get the number of the bus that a device is connected to."""
+        _not_implemented(self.get_bus_number)
+
+    def get_device_address(self, dev):
+        r"""Get the address of the device on the bus it is connected to."""
+        _not_implemented(self.get_device_address)
+
     def set_configuration(self, dev_handle, config_value):
         r"""Set the active device configuration.
 
diff -ur a/usb/backend/libusb10.py b/usb/backend/libusb10.py
--- a/usb/backend/libusb10.py	2010-12-15 18:39:03.000000000 +0100
+++ b/usb/backend/libusb10.py	2011-03-15 16:51:01.000000000 +0100
@@ -194,6 +194,14 @@
             c_int
         ]
 
+    # uint8_t libusb_get_bus_number(libusb_device *dev)
+    lib.libusb_get_bus_number.argtypes = [c_void_p]
+    lib.libusb_get_bus_number.restype = c_uint8
+    
+    # uint8_t libusb_get_device_address(libusb_device *dev)
+    lib.libusb_get_device_address.argtypes = [c_void_p]
+    lib.libusb_get_device_address.restype = c_uint8
+    
     # libusb_device *libusb_ref_device (libusb_device *dev)
     lib.libusb_ref_device.argtypes = [c_void_p]
     lib.libusb_ref_device.restype = c_void_p
@@ -451,6 +459,14 @@
         _lib.libusb_close(dev_handle)
 
     @methodtrace(_logger)
+    def get_bus_number(self, dev):
+        return _lib.libusb_get_bus_number(dev.devid)
+
+    @methodtrace(_logger)
+    def get_device_address(self, dev):
+        return _lib.libusb_get_device_address(dev.devid)
+
+    @methodtrace(_logger)
     def set_configuration(self, dev_handle, config_value):
         _check(_lib.libusb_set_configuration(dev_handle, config_value))
 
diff -ur a/usb/core.py b/usb/core.py
--- a/usb/core.py	2010-12-17 14:42:53.000000000 +0100
+++ b/usb/core.py	2011-03-15 16:58:27.000000000 +0100
@@ -559,6 +559,16 @@
         """
         self._ctx.managed_set_interface(self, interface, alternate_setting)
 
+    def get_bus_number(self):
+        r"""Get the number of the bus that a device is connected to."""
+        self._ctx.managed_open()
+        return self._ctx.backend.get_bus_number(self._ctx.dev)
+
+    def get_device_address(self):
+        r"""Get the address of the device on the bus it is connected to."""
+        self._ctx.managed_open()
+        return self._ctx.backend.get_device_address(self._ctx.dev)
+
     def reset(self):
         r"""Reset the device."""
         self._ctx.dispose(self, False)