1 files changed, 99 insertions, 0 deletions
diff --git a/LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DeviceListPolling.cs b/LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DeviceListPolling.cs
new file mode 100644
index 00000000..78173e0b
--- /dev/null
+++ b/LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DeviceListPolling.cs
@@ -0,0 +1,99 @@
+// Copyright © 2006-2010 Travis Robinson. All rights reserved.
+// 
+// website: http://sourceforge.net/projects/libusbdotnet
+// e-mail:  libusbdotnet@gmail.com
+// 
+// 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. or 
+// visit www.gnu.org.
+// 
+// 
+using System;
+using System.Timers;
+using LibUsbDotNet.LudnMonoLibUsb;
+using MonoLibUsb.Profile;
+
+namespace LibUsbDotNet.DeviceNotify.Linux
+{
+    public partial class LinuxDeviceNotifier
+    {
+        ///<summary>
+        /// The interval (milliseconds) in which the device list is queried for changes when using the <see cref="LinuxDeviceNotifierMode.PollDeviceList"/> mode.
+        ///</summary>
+        public static int PollingInterval = 750;
+
+        private Timer mDeviceListPollTimer;
+        private object PollTimerLock = new object();
+
+        private void StartDeviceListPolling()
+        {
+            lock (PollTimerLock)
+            {
+                if (mDeviceListPollTimer != null) return;
+
+                MonoUsbDevice.RefreshProfileList();
+
+                MonoUsbDevice.ProfileList.AddRemoveEvent += OnAddRemoveEvent;
+                mDeviceListPollTimer = new Timer(PollingInterval);
+                mDeviceListPollTimer.Elapsed += PollTimer_Elapsed;
+                mDeviceListPollTimer.Start();
+            }
+        }
+
+        private void PollTimer_Elapsed(object sender, ElapsedEventArgs e)
+        {
+            lock (PollTimerLock)
+            {
+                mDeviceListPollTimer.Stop();
+                MonoUsbDevice.RefreshProfileList();
+                mDeviceListPollTimer.Start();
+            }
+        }
+
+        private void StopDeviceListPolling()
+        {
+            lock (PollTimerLock)
+            {
+                if (mDeviceListPollTimer == null) return;
+                mDeviceListPollTimer.Stop();
+                mDeviceListPollTimer.Elapsed -= PollTimer_Elapsed;
+                mDeviceListPollTimer.Dispose();
+                MonoUsbDevice.ProfileList.AddRemoveEvent -= OnAddRemoveEvent;
+                mDeviceListPollTimer = null;
+            }
+        }
+
+
+        private void OnAddRemoveEvent(object sender, AddRemoveEventArgs e)
+        {
+            EventHandler<DeviceNotifyEventArgs> deviceNotify = OnDeviceNotify;
+            if (!ReferenceEquals(deviceNotify, null))
+            {
+                string deviceFileName = String.Format("usbdev{0}.{1}", e.MonoUSBProfile.BusNumber, e.MonoUSBProfile.DeviceAddress);
+
+                LinuxDevItem linuxDevItem = new LinuxDevItem(deviceFileName,
+                                                             e.MonoUSBProfile.BusNumber,
+                                                             e.MonoUSBProfile.DeviceAddress,
+                                                             e.MonoUSBProfile.DeviceDescriptor);
+
+                deviceNotify(this,
+                             new LinuxDeviceNotifyEventArgs(linuxDevItem,
+                                                            DeviceType.DeviceInterface,
+                                                            e.EventType == AddRemoveType.Added
+                                                                ? EventType.DeviceArrival
+                                                                : EventType.DeviceRemoveComplete));
+            }
+        }
+    }
+}
+\ No newline at end of file