Start on XHCI struct

src/hulk/usb/xhci.d

@@ -0,0 +1,20 @@
+module hulk.usb.xhci;
+
+import hulk.pci;
+import hulk.hurl.a1;
+
+struct XHCI
+{
+    void initialize(Pci.Device * pci_device)
+    {
+    }
+
+    static void build(Pci.Device * pci_device)
+    {
+        if (pci_device.memory_ranges[0].address != null)
+        {
+            XHCI * xhci = A1.allocate!XHCI();
+            xhci.initialize(pci_device);
+        }
+    }
+}