-               switch (USB_HostState)
-               {
-                       case HOST_STATE_Addressed:
-                               LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
-                       
-                               uint16_t ConfigDescriptorSize;
-                               uint8_t  ConfigDescriptorData[512];
-
-                               if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
-                                                                      sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
-                               {
-                                       puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                                       break;
-                               }
-
-                               if (HID_Host_ConfigurePipes(&Keyboard_HID_Interface,
-                                                           ConfigDescriptorSize, ConfigDescriptorData) != HID_ENUMERROR_NoError)
-                               {
-                                       puts_P(PSTR("Attached Device Not a Valid Keyboard.\r\n"));
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                                       break;
-                               }
-                               
-                               if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
-                               {
-                                       puts_P(PSTR("Error Setting Device Configuration.\r\n"));
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                                       break;
-                               }
-
-                               if (HID_Host_SetBootProtocol(&Keyboard_HID_Interface) != 0)
-                               {
-                                       puts_P(PSTR("Could not Set Boot Protocol Mode.\r\n"));
-                                       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                                       break;
-                               }
-                               
-                               puts_P(PSTR("Keyboard Enumerated.\r\n"));
-                               LEDs_SetAllLEDs(LEDMASK_USB_READY);
-                               USB_HostState = HOST_STATE_Configured;
-                               break;
-                       case HOST_STATE_Configured:
-                               if (HID_Host_IsReportReceived(&Keyboard_HID_Interface))
-                               {
-                                       USB_KeyboardReport_Data_t KeyboardReport;                                       
-                                       HID_Host_ReceiveReport(&Keyboard_HID_Interface, &KeyboardReport);
-
-                                       LEDs_ChangeLEDs(LEDS_LED1, (KeyboardReport.Modifier) ? LEDS_LED1 : 0);
-                                       
-                                       uint8_t PressedKeyCode = KeyboardReport.KeyCode[0];
-
-                                       if (PressedKeyCode)
-                                       {
-                                               char PressedKey = 0;
-
-                                               LEDs_ToggleLEDs(LEDS_LED2);
-                                                         
-                                               /* Retrieve pressed key character if alphanumeric */
-                                               if ((PressedKeyCode >= 0x04) && (PressedKeyCode <= 0x1D))
-                                                 PressedKey = (PressedKeyCode - 0x04) + 'A';
-                                               else if ((PressedKeyCode >= 0x1E) && (PressedKeyCode <= 0x27))
-                                                 PressedKey = (PressedKeyCode - 0x1E) + '0';
-                                               else if (PressedKeyCode == 0x2C)
-                                                 PressedKey = ' ';                                             
-                                               else if (PressedKeyCode == 0x28)
-                                                 PressedKey = '\n';
-                                                        
-                                               if (PressedKey)
-                                                 putchar(PressedKey);
-                                       }
-                               }
-                               
-                               break;
-               }
-