1 files changed, 220 insertions, 0 deletions
diff --git a/serial/VirtualSerial/driver.cpp b/serial/VirtualSerial/driver.cpp
new file mode 100644
index 00000000..0ec28ec5
--- /dev/null
+++ b/serial/VirtualSerial/driver.cpp
@@ -0,0 +1,220 @@
+/*++
+ 
+Copyright (C) Microsoft Corporation, All Rights Reserved.
+
+Module Name:
+
+    Driver.cpp
+
+Abstract:
+
+    This module contains the implementation of the UMDF VirtualSerial Sample's 
+    core driver callback object.
+
+Environment:
+
+   Windows User-Mode Driver Framework (WUDF)
+
+--*/
+
+#include "internal.h"
+#include "driver.tmh"
+
+HRESULT
+CMyDriver::CreateInstance(
+    _Out_ PCMyDriver *Driver
+    )
+/*++
+ 
+  Routine Description:
+
+    This static method is invoked in order to create and initialize a new 
+    instance of the driver class.  The caller should arrange for the object
+    to be released when it is no longer in use.
+
+  Arguments:
+
+    Driver - a location to store a referenced pointer to the new instance
+
+  Return Value:
+
+    S_OK if successful, or error otherwise.
+
+--*/
+{
+    PCMyDriver driver;
+    HRESULT hr;
+
+    //
+    // Allocate the callback object.
+    //
+
+    driver = new CMyDriver();
+
+    if (NULL == driver)
+    {
+        return E_OUTOFMEMORY;
+    }
+        
+    //
+    // Initialize the callback object.
+    //
+
+    hr = driver->Initialize();
+
+    if (SUCCEEDED(hr)) 
+    {
+        //
+        // Store a pointer to the new, initialized object in the output 
+        // parameter.
+        //
+
+        *Driver = driver;
+    }
+    else 
+    {
+
+        //
+        // Release the reference on the driver object to get it to delete 
+        // itself.
+        //
+
+        driver->Release();
+    }
+
+    return hr;
+}
+
+HRESULT
+CMyDriver::Initialize(
+    VOID
+    )
+/*++
+ 
+  Routine Description:
+
+    This method is called to initialize a newly created driver callback object
+    before it is returned to the creator.  Unlike the constructor, the 
+    Initialize method contains operations which could potentially fail.
+
+  Arguments:
+
+    None
+
+  Return Value:
+
+    None
+
+--*/
+{
+    return S_OK;
+}
+
+HRESULT
+CMyDriver::QueryInterface(
+    _In_ REFIID InterfaceId,
+    _Out_ PVOID *Interface
+    )
+/*++
+ 
+  Routine Description:
+
+    This method returns a pointer to the requested interface on the callback
+    object..
+
+  Arguments:
+
+    InterfaceId - the IID of the interface to query/reference
+
+    Interface - a location to store the interface pointer.
+
+  Return Value:
+
+    S_OK if the interface is supported.
+    E_NOINTERFACE if it is not supported.
+
+--*/
+{
+    if (IsEqualIID(InterfaceId, __uuidof(IDriverEntry)))
+    {
+        *Interface = QueryIDriverEntry();
+        return S_OK;
+    }
+    else
+    {
+        return CUnknown::QueryInterface(InterfaceId, Interface);
+    }
+}
+
+HRESULT
+CMyDriver::OnDeviceAdd(
+    _In_ IWDFDriver *FxWdfDriver,
+    _In_ IWDFDeviceInitialize *FxDeviceInit
+    )
+/*++
+ 
+  Routine Description:
+
+    The FX invokes this method when it wants to install our driver on a device
+    stack.  This method creates a device callback object, then calls the Fx
+    to create an Fx device object and associate the new callback object with
+    it.
+
+  Arguments:
+
+    FxWdfDriver - the Fx driver object.
+
+    FxDeviceInit - the initialization information for the device.
+
+  Return Value:
+
+    status
+
+--*/
+{
+    HRESULT hr;
+
+    PCMyDevice device = NULL;
+
+    //
+    // TODO: Do any per-device initialization (reading settings from the 
+    //       registry for example) that's necessary before creating your 
+    //       device callback object here.  Otherwise you can leave such 
+    //       initialization to the initialization of the device event 
+    //       handler.
+    //
+
+    //
+    // Create a new instance of our device callback object 
+    //
+
+    hr = CMyDevice::CreateInstance(FxWdfDriver, FxDeviceInit, &device);
+
+    //
+    // TODO: Change any per-device settings that the object exposes before
+    //       calling Configure to let it complete its initialization.
+    //
+
+    //
+    // If that succeeded then call the device's construct method.  This 
+    // allows the device to create any queues or other structures that it
+    // needs now that the corresponding fx device object has been created.
+    //
+
+    if (SUCCEEDED(hr)) 
+    {
+        hr = device->Configure();
+    }
+
+    // 
+    // Release the reference on the device callback object now that it's been
+    // associated with an fx device object.
+    //
+
+    if (NULL != device)
+    {
+        device->Release();
+    }
+
+    return hr;
+}