[PATCH 2/6] wineusb.sys: Implement AddDevice().

[Zebediah Figura]

Signed-off-by: Zebediah Figura 
---
 dlls/wineusb.sys/wineusb.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/dlls/wineusb.sys/wineusb.c b/dlls/wineusb.sys/wineusb.c
index b26f1036d8..6af8a9aaa5 100644
--- a/dlls/wineusb.sys/wineusb.c
+++ b/dlls/wineusb.sys/wineusb.c
@@ -38,6 +38,27 @@

WINE_DEFAULT_DEBUG_CHANNEL(wineusb);

+static DEVICE_OBJECT *bus_fdo, *bus_pdo;
+
+static NTSTATUS WINAPI driver_add_device(DRIVER_OBJECT *driver, DEVICE_OBJECT *pdo)
+{
+    NTSTATUS ret;
+
+    TRACE("driver %p, pdo %p.\n", driver, pdo);
+
+    if ((ret = IoCreateDevice(driver, 0, NULL, FILE_DEVICE_BUS_EXTENDER, 0, FALSE, &bus_fdo)))
+    {
+        ERR("Failed to create FDO, status %#x.\n", ret);
+        return ret;
+    }
+
+    IoAttachDeviceToDeviceStack(bus_fdo, pdo);
+    bus_pdo = pdo;
+    bus_fdo->Flags &= ~DO_DEVICE_INITIALIZING;
+
+    return STATUS_SUCCESS;
+}
+
 static void WINAPI driver_unload(DRIVER_OBJECT *driver)
 {
     libusb_exit(NULL);
@@ -55,6 +76,7 @@ NTSTATUS WINAPI DriverEntry(DRIVER_OBJECT *driver, UNICODE_STRING *path)
         return STATUS_UNSUCCESSFUL;
     }

+    driver->DriverExtension->AddDevice = driver_add_device;
     driver->DriverUnload = driver_unload;

return STATUS_SUCCESS;