Fill in serial field for all HID controllers using hidapi

Controllers/HyperXMousematController/HyperXMousematController.cpp

@@ -27,6 +27,17 @@ std::string HyperXMousematController::GetDeviceLocation()
     return("HID " + location);
 }
 
+std::string HyperXMousematController::GetSerialString()
+{
+    wchar_t serial_string[128];
+    hid_get_serial_number_string(dev, serial_string, 128);
+
+    std::wstring return_wstring = serial_string;
+    std::string return_string(return_wstring.begin(), return_wstring.end());
+
+    return(return_string);
+}
+
 /*-------------------------------------------------------------------------------------------------*\
 | Private packet sending functions.                                                                 |
 \*-------------------------------------------------------------------------------------------------*/

Controllers/HyperXMousematController/HyperXMousematController.h

@@ -21,6 +21,7 @@ public:
     ~HyperXMousematController();
 
     std::string GetDeviceLocation();
+    std::string GetSerialString();
 
     void SendDirect
             (

Controllers/HyperXMousematController/RGBController_HyperXMousemat.cpp

@@ -20,6 +20,7 @@ RGBController_HyperXMousemat::RGBController_HyperXMousemat(HyperXMousematControl
     type        = DEVICE_TYPE_MOUSEMAT;
     description = "HyperX Mousemat Device";
     location    = hyperx->GetDeviceLocation();
+    serial      = hyperx->GetSerialString();
 
     mode Direct;
     Direct.name = "Direct";