10 signed portBASE_TYPE usbserPutChar (signed portCHAR cOutChar, portTickType xBlockTime);
11 signed portBASE_TYPE usbserPutString (const signed portCHAR * const pcString, portTickType xBlockTime);
12 signed portBASE_TYPE usbserGetChar (signed portCHAR *pcRxedChar, portTickType xBlockTime);
13 void usbserInit (void);
14 void usbserGetRxQueue (xQueueHandle *qh);