/** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
 /** Event handler for the library USB Configuration Changed event. */
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
-       if (!(HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface)))
-         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+       ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
+       ConfigSuccess &= HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface);
- *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
- *  \param[in,out] ReportID  Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
- *  \param[in] ReportType  Type of the report to create, either REPORT_ITEM_TYPE_In or REPORT_ITEM_TYPE_Feature
- *  \param[out] ReportData  Pointer to a buffer where the created report should be stored
- *  \param[out] ReportSize  Number of bytes written in the report (or zero if no report is to be sent
+ *  \param[in]     HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
+ *  \param[in,out] ReportID    Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
+ *  \param[in]     ReportType  Type of the report to create, either REPORT_ITEM_TYPE_In or REPORT_ITEM_TYPE_Feature
+ *  \param[out]    ReportData  Pointer to a buffer where the created report should be stored
+ *  \param[out]    ReportSize  Number of bytes written in the report (or zero if no report is to be sent
-bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,
-                                         const uint8_t ReportType, void* ReportData, uint16_t* ReportSize)
+bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
+                                         uint8_t* const ReportID,
+                                         const uint8_t ReportType,
+                                         void* ReportData,
+                                         uint16_t* const ReportSize)
  *  \param[in] ReportData  Pointer to a buffer where the created report has been stored
  *  \param[in] ReportSize  Size in bytes of the received HID report
  */
  *  \param[in] ReportData  Pointer to a buffer where the created report has been stored
  *  \param[in] ReportSize  Size in bytes of the received HID report
  */
-void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, const uint8_t ReportID,
-                                          const uint8_t ReportType, const void* ReportData, const uint16_t ReportSize)
+void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
+                                          const uint8_t ReportID,
+                                          const uint8_t ReportType,
+                                          const void* ReportData,
+                                          const uint16_t ReportSize)