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diff --git a/examples/ruby/list-devices.rb b/examples/ruby/list-devices.rb
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+++ b/examples/ruby/list-devices.rb
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+#!/usr/bin/env ruby
+# vim: ft=ruby ts=2 sts=2 sw=2 et ai
+# -*- Mode: ruby; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+#
+# 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 2 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, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Copyright (C) 2011 Red Hat, Inc.
+#
+
+require 'dbus'
+
+#
+# This example lists basic information about network interfaces known to NM
+#
+
+devtypes = { 1 => "Ethernet",
+             2 => "WiFi",
+             5 => "Bluetooth",
+             6 => "OLPC",
+             7 => "WiMAX",
+             8 => "Modem" }
+
+states = { 0   => "Unknown",
+           10  => "Unmanaged",
+           20  => "Unavailable",
+           30  => "Disconnected",
+           40  => "Prepare",
+           50  => "Config",
+           60  => "Need Auth",
+           70  => "IP Config",
+           80  => "IP Check",
+           90  => "Secondaries",
+           100 => "Activated",
+           110 => "Deactivating",
+           120 => "Failed" }
+
+# Get system bus
+system_bus = DBus::SystemBus.instance
+
+# Get the NetworkManager service
+nm_service = system_bus.service("org.freedesktop.NetworkManager")
+
+# Get the object from the service
+nm_object = nm_service.object("/org/freedesktop/NetworkManager")
+
+# Set default interface for the object
+nm_object.default_iface = "org.freedesktop.NetworkManager"
+
+# Introspect it
+nm_object.introspect
+
+# Get all devices known to NM
+devices = nm_object.GetDevices.first
+
+# and print their properties
+devices.each do |d|
+  dev_obj = system_bus.service("org.freedesktop.NetworkManager").object(d)
+  dev_obj.introspect
+  props = dev_obj["org.freedesktop.DBus.Properties"].GetAll("org.freedesktop.NetworkManager.Device")
+
+  puts "============================"
+  puts "Interface: #{props[0]['Interface']}"
+
+  devtype = devtypes[props[0]['DeviceType']]
+  devtype = "Unknown" if devtype.nil?
+  puts "Type: #{devtype}"
+
+  puts "Driver: #{props[0]['Driver']}"
+
+  state = states[props[0]['State']]
+  state = "Unknown" if state.nil?
+  puts "State: #{state}"
+end