diff --git a/src/knx/usb_tunnel_interface.h b/src/knx/usb_tunnel_interface.h
index 78f8238..43c04cf 100644
--- a/src/knx/usb_tunnel_interface.h
+++ b/src/knx/usb_tunnel_interface.h
@@ -17,23 +17,44 @@ class UsbTunnelInterface
     // from cEMI server
     bool sendCemiFrame(CemiFrame& frame);
 
+    static const uint8_t* getKnxHidReportDescriptor();
+    static uint16_t getHidReportDescriptorLength();
+    static void receiveKnxHidReport(uint8_t const* data, uint16_t bufSize);
+
   private:
-    struct _tx_queue_frame_t
+    struct _queue_buffer_t
     {
         uint8_t* data;
         uint16_t length;
-        _tx_queue_frame_t* next;
+        _queue_buffer_t* next;
     };
 
-    struct _tx_queue_t
+    struct _queue_t
     {
-        _tx_queue_frame_t* front = nullptr;
-        _tx_queue_frame_t* back = nullptr;
-    } _tx_queue;
+        _queue_buffer_t* front = nullptr;
+        _queue_buffer_t* back = nullptr;
+    };
+
+    static const uint8_t descHidReport[];
 
     CemiServer& _cemiServer;
 
+    uint16_t _manufacturerId;
+    uint16_t _maskVersion;
+
+    // USB TX queue
+    _queue_t _tx_queue;
     void addFrameTxQueue(CemiFrame& frame);
     bool isTxQueueEmpty();
     void loadNextTxFrame(uint8_t** sendBuffer, uint16_t* sendBufferLength);
+
+    // USB RX queue
+    static _queue_t _rx_queue;
+    static void addBufferRxQueue(const uint8_t* data, uint16_t length);
+    bool isRxQueueEmpty();
+    void loadNextRxBuffer(uint8_t** receiveBuffer, uint16_t* receiveBufferLength);
+
+    void handleKnxHidReport(uint8_t const* data, uint16_t bufSize);
+    void handleBusAccessServerProtocol(const uint8_t* requestData, uint16_t packetLength);
+    void sendKnxTunnelHidReport(uint8_t* data, uint16_t length);
 };