+\r
+typedef struct {\r
+ UINT16 PortStatus;\r
+ UINT16 PortChangeStatus;\r
+} EFI_USB_PORT_STATUS;\r
+\r
+//\r
+// Constant value for Port Status & Port Change Status\r
+//\r
+#define USB_PORT_STAT_CONNECTION 0x0001\r
+#define USB_PORT_STAT_ENABLE 0x0002\r
+#define USB_PORT_STAT_SUSPEND 0x0004\r
+#define USB_PORT_STAT_OVERCURRENT 0x0008\r
+#define USB_PORT_STAT_RESET 0x0010\r
+#define USB_PORT_STAT_POWER 0x0100\r
+#define USB_PORT_STAT_LOW_SPEED 0x0200\r
+#define USB_PORT_STAT_HIGH_SPEED 0x0400\r
+#define USB_PORT_STAT_OWNER 0x0800\r
+\r
+#define USB_PORT_STAT_C_CONNECTION 0x0001\r
+#define USB_PORT_STAT_C_ENABLE 0x0002\r
+#define USB_PORT_STAT_C_SUSPEND 0x0004\r
+#define USB_PORT_STAT_C_OVERCURRENT 0x0008\r
+#define USB_PORT_STAT_C_RESET 0x0010\r
+\r
+\r
+//\r
+// Usb port features\r
+//\r
+typedef enum {\r
+ EfiUsbPortEnable = 1,\r
+ EfiUsbPortSuspend = 2,\r
+ EfiUsbPortReset = 4,\r
+ EfiUsbPortPower = 8,\r
+ EfiUsbPortOwner = 13,\r
+ EfiUsbPortConnectChange = 16,\r
+ EfiUsbPortEnableChange = 17,\r
+ EfiUsbPortSuspendChange = 18,\r
+ EfiUsbPortOverCurrentChange = 19,\r
+ EfiUsbPortResetChange = 20\r
+} EFI_USB_PORT_FEATURE;\r
+\r
+\r