}\r
 \r
                                printf("Turning off Device...\r\n");\r
-                               SImage_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, 0, 0, 0, NULL);\r
+\r
+                               SImage_Host_SendCommand(&DigitalCamera_SI_Interface, 0x1013, 0, NULL);\r
+                               if (SImage_Host_ReceiveResponse(&DigitalCamera_SI_Interface))\r
+                               {\r
+                                       printf("Could not turn off device.\r\n");\r
+                                       USB_HostState = HOST_STATE_WaitForDeviceRemoval;\r
+                                       break;                                  \r
+                               }\r
+\r
                                printf("Device Off.\r\n");\r
 \r
                                printf("Closing Session...\r\n");\r