| [in] | protocol | used to execute the command  | 
    | [in] | MaxReadCount | Number of Bytes to read via the reader's 2nd RS-232/UART interface.  | 
    | [in] | Timeout | Number of milliseconds to wait for Bytes.  | 
    | [in] | WriteData | Data to write to the reader's 2nd RS-232/UART interface.  | 
    | [in] | WriteData_len |  | 
    | [out] | ReadData | Data read from the reader's 2nd RS-232/UART interface.  | 
    | [out] | ReadData_len |  | 
    | [in] | mempool | is used to store response data. Maybe NULL to use an internal mempool, in this case the data is only available until another command uses the internal mempool  |