Tweaks to improve hotplug detection

Check status of first output report before adding
device to the list

DS4Windows/DS4Control/ScpUtil.cs

@@ -235,7 +235,7 @@ namespace DS4Windows
         public static string appDataPpath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\DS4Windows";
         public static string oldappdatapath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "\\DS4Tool";
         public static bool runHotPlug = false;
-        public const int XINPUT_UNPLUG_SETTLE_TIME = 500; // Inhibit races that occur with the asynchronous teardown of ScpVBus -> X360 driver instance.
+        public const int XINPUT_UNPLUG_SETTLE_TIME = 250; // Inhibit races that occur with the asynchronous teardown of ScpVBus -> X360 driver instance.
         public static string[] tempprofilename = new string[5] { string.Empty, string.Empty, string.Empty, string.Empty, string.Empty };
         public static bool[] tempprofileDistance = new bool[5] { false, false, false, false, false };
         public static bool[] useDInputOnly = new bool[5] { true, true, true, true, true };

DS4Windows/DS4Library/DS4Device.cs

@@ -156,6 +156,7 @@ namespace DS4Windows
         }
 
         private bool exitOutputThread = false;
+        public bool ExitOutputThread => exitOutputThread;
         private bool exitInputThread = false;
         private object exitLocker = new object();
 
@@ -449,6 +450,13 @@ namespace DS4Windows
             sixAxis = new DS4SixAxis();
             Crc32Algorithm.InitializeTable(DefaultPolynomial);
             refreshCalibration();
+
+            if (!hDevice.IsFileStreamOpen())
+            {
+                hDevice.OpenFileStream(inputReport.Length);
+            }
+
+            sendOutputReport(true); // initialize the output report
         }
 
         private void timeoutTestThread()
@@ -513,14 +521,6 @@ namespace DS4Windows
         {
             if (ds4Input == null)
             {
-                if (!hDevice.IsFileStreamOpen())
-                {
-                    hDevice.OpenFileStream(inputReport.Length);
-                }
-
-                //Console.WriteLine(MacAddress.ToString() + " " + System.DateTime.UtcNow.ToString("o") + "> start");
-                sendOutputReport(true); // initialize the output report
-
                 ds4Output = new Thread(performDs4Output);
                 ds4Output.Priority = ThreadPriority.AboveNormal;
                 ds4Output.Name = "DS4 Output thread: " + Mac;
@@ -1195,6 +1195,7 @@ namespace DS4Windows
             if (quitOutputThread)
             {
                 StopOutputUpdate();
+                exitOutputThread = true;
             }
         }
 

DS4Windows/DS4Library/DS4Devices.cs

@@ -143,9 +143,12 @@ namespace DS4Windows
                         {
                             DS4Device ds4Device = new DS4Device(hDevice);
                             //ds4Device.Removal += On_Removal;
-                            Devices.Add(hDevice.DevicePath, ds4Device);
+                            if (!ds4Device.ExitOutputThread)
-                            DevicePaths.Add(hDevice.DevicePath);
+                            {
-                            deviceSerials.Add(serial);
+                                Devices.Add(hDevice.DevicePath, ds4Device);
+                                DevicePaths.Add(hDevice.DevicePath);
+                                deviceSerials.Add(serial);
+                            }
                         }
                     }
                 }