c++ - Libserial read serial port -


i using libserial library interact modem using c++. c++ code sends @ command:

my_serial_stream << "at+csq" << '\r' ;

the modem responds response, either error or ok,

the c++ code read response:

while( serial_port.rdbuf()->in_avail() > 0  )  {     char next_byte;     serial_port.get(next_byte);     std::cerr << std::hex << (int)next_byte << " "; }  std::cerr << std::endl;

i handle response such if response ok, modem sends command , if response error, modem resends first command.


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