+ /** Enum for the various states of the USB Device state machine. Only some states are\r
+ * implemented in the LUFA library - other states are left to the user to implement.\r
+ *\r
+ * For information on each possible USB device state, refer to the USB 2.0 specification.\r
+ *\r
+ * \see \ref USB_DeviceState, which stores the current device state machine state.\r
+ */\r