pub unsafe extern "C" fn get_serial_param(
SerialHandle: Hlong,
BaudRate: *mut Hlong,
DataBits: *mut Hlong,
FlowControl: *mut c_char,
Parity: *mut c_char,
StopBits: *mut Hlong,
TotalTimeOut: *mut Hlong,
InterCharTimeOut: *mut Hlong,
) -> Herror