// Generic interface for the different serial buses available on the PN532
void pn532_bus_HWInit(void);
pn532_error_t pn532_bus_SendCommand(const byte_t * pbtData, const size_t szData);
pn532_error_t pn532_bus_ReadResponse(byte_t * pbtResponse, size_t * pszRxLen);
// Generic interface for the different serial buses available on the PN532
void pn532_bus_HWInit(void);
pn532_error_t pn532_bus_SendCommand(const byte_t * pbtData, const size_t szData);
pn532_error_t pn532_bus_ReadResponse(byte_t * pbtResponse, size_t * pszRxLen);