diff options
Diffstat (limited to 'LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DevMonitor.cs')
| -rw-r--r-- | LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DevMonitor.cs | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DevMonitor.cs b/LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DevMonitor.cs new file mode 100644 index 0000000..bbdab1f --- /dev/null +++ b/LibWinUsb/DeviceNotify/Linux/LinuxDeviceNotifier.DevMonitor.cs @@ -0,0 +1,187 @@ +// 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.IO;
+using System.Text.RegularExpressions;
+using LibUsbDotNet.Descriptors;
+
+namespace LibUsbDotNet.DeviceNotify.Linux
+{
+ public partial class LinuxDeviceNotifier
+ {
+ private static Regex _RegParseDeviceInterface;
+ private static string DeviceIntefaceMatchExpression = "usbdev(?<BusNumber>[0-9]+)\\.(?<DeviceAddress>[0-9]+)$";
+ private readonly string mDevDir;
+ private FileSystemWatcher mUsbFS;
+
+ private static Regex RegParseDeviceInterface
+ {
+ get
+ {
+ if (ReferenceEquals(_RegParseDeviceInterface, null))
+ {
+ _RegParseDeviceInterface = new Regex(DeviceIntefaceMatchExpression,
+ RegexOptions.Compiled | RegexOptions.ExplicitCapture | RegexOptions.CultureInvariant |
+ RegexOptions.Singleline);
+ }
+ return _RegParseDeviceInterface;
+ }
+ }
+
+
+ private static bool IsDeviceEnterface(string name, out byte busNumber, out byte deviceAddress)
+ {
+ busNumber = 0;
+ deviceAddress = 0;
+
+ Match match = RegParseDeviceInterface.Match(name);
+ if (match.Success)
+ {
+ try
+ {
+ busNumber = byte.Parse(match.Groups["BusNumber"].Value);
+ deviceAddress = byte.Parse(match.Groups["DeviceAddress"].Value);
+ return true;
+ }
+ catch
+ {
+ return false;
+ }
+ }
+ return false;
+ }
+
+ private static bool ReadFileDescriptor(string fullPath, out byte[] deviceDescriptorBytes)
+ {
+ try
+ {
+ FileStream f = File.Open(fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+ deviceDescriptorBytes = new byte[UsbDeviceDescriptor.Size];
+ int iRead = f.Read(deviceDescriptorBytes, 0, UsbDeviceDescriptor.Size);
+ f.Close();
+
+ return iRead == UsbDeviceDescriptor.Size;
+ }
+ catch
+ {
+ deviceDescriptorBytes = null;
+ return false;
+ }
+ }
+
+ private void StartDevDirectoryMonitor()
+ {
+ if (!ReferenceEquals(mUsbFS, null)) return;
+
+ BuildDevList();
+ mUsbFS = new FileSystemWatcher(mDevDir);
+ mUsbFS.IncludeSubdirectories = false;
+ mUsbFS.Created += FileAdded;
+ mUsbFS.Deleted += FileRemoved;
+ mUsbFS.EnableRaisingEvents = true;
+ }
+
+ private void BuildDevList()
+ {
+ mLinuxDevItemList.Clear();
+ string[] deviceInterfaceFiles = Directory.GetFiles(mDevDir, "usbdev*", SearchOption.TopDirectoryOnly);
+ foreach (string deviceInterfaceFile in deviceInterfaceFiles)
+ {
+ byte busNumber;
+ byte deviceAddress;
+ string deviceFileName = Path.GetFileName(deviceInterfaceFile);
+ if (IsDeviceEnterface(deviceFileName, out busNumber, out deviceAddress))
+ {
+ byte[] descriptorBytes;
+ if (ReadFileDescriptor(deviceInterfaceFile, out descriptorBytes))
+ {
+ LinuxDevItem addedItem = new LinuxDevItem(deviceFileName, busNumber, deviceAddress, descriptorBytes);
+ mLinuxDevItemList.Add(addedItem);
+ }
+ }
+ }
+ //Console.WriteLine("LinuxDeviceNotifier:BuildDevList Count:{0}",mLinuxDevItemList.Count);
+ }
+
+ private void FileRemoved(object sender, FileSystemEventArgs e)
+ {
+ byte busNumber;
+ byte deviceAddress;
+ if (IsDeviceEnterface(e.Name, out busNumber, out deviceAddress))
+ {
+ LinuxDevItem foundLinuxDevItem;
+ if ((foundLinuxDevItem = mLinuxDevItemList.FindByName(e.Name)) == null) throw new Exception("FileRemoved:Invalid LinuxDevItem");
+
+ //Console.WriteLine("Removed Vid:{0:X4} Pid:{1:X4}", foundLinuxDevItem.DeviceDescriptor.VendorID, foundLinuxDevItem.DeviceDescriptor.ProductID);
+ //////////////////////
+ // TODO:DEVICE REMOVAL
+ //////////////////////
+
+ mLinuxDevItemList.Remove(foundLinuxDevItem);
+ EventHandler<DeviceNotifyEventArgs> deviceNotify = OnDeviceNotify;
+ if (!ReferenceEquals(deviceNotify, null))
+ {
+ deviceNotify(this, new LinuxDeviceNotifyEventArgs(foundLinuxDevItem, DeviceType.DeviceInterface, EventType.DeviceRemoveComplete));
+ }
+ }
+ }
+
+ private void FileAdded(object sender, FileSystemEventArgs e)
+ {
+ byte busNumber;
+ byte deviceAddress;
+ if (IsDeviceEnterface(e.Name, out busNumber, out deviceAddress))
+ {
+ byte[] descriptorBytes;
+ if (ReadFileDescriptor(e.FullPath, out descriptorBytes))
+ {
+ LinuxDevItem addedItem = new LinuxDevItem(e.Name, busNumber, deviceAddress, descriptorBytes);
+ if (mLinuxDevItemList.FindByName(e.Name) != null) throw new Exception("FileAdded:Invalid LinuxDevItem");
+ mLinuxDevItemList.Add(addedItem);
+
+ //Console.WriteLine("Added Vid:{0:X4} Pid:{1:X4}", addedItem.DeviceDescriptor.VendorID, addedItem.DeviceDescriptor.ProductID);
+ //////////////////////
+ // TODO:DEVICE ARRIVAL
+ //////////////////////
+
+ EventHandler<DeviceNotifyEventArgs> deviceNotify = OnDeviceNotify;
+ if (!ReferenceEquals(deviceNotify, null))
+ {
+ deviceNotify(this, new LinuxDeviceNotifyEventArgs(addedItem, DeviceType.DeviceInterface, EventType.DeviceArrival));
+ }
+ }
+ }
+ }
+
+ private void StopDevDirectoryMonitor()
+ {
+ if (!ReferenceEquals(mUsbFS, null))
+ {
+ mUsbFS.EnableRaisingEvents = false;
+ mUsbFS.Created -= FileAdded;
+ mUsbFS.Deleted -= FileRemoved;
+ mUsbFS.Dispose();
+ mUsbFS = null;
+ }
+ }
+ }
+}
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