linux qt4 串口

#include <QCoreApplication>
#include "qextserialport.h"

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QextSerialPort port("COM1", QextSerialPort::EventDriven);
    port.setBaudRate(BAUD9600);
    port.setDataBits(DATA_8);
    port.setParity(PAR_NONE);
    port.setStopBits(STOP_1);
    port.setFlowControl(FLOW_OFF);

    if (port.open(QIODevice::ReadWrite)) {
        qDebug() << "Serial port opened successfully";

        QObject::connect(&port, SIGNAL(readyRead()), [&port]() {
            QByteArray data = port.readAll();
            qDebug() << "Received data:" << data;
        });

        port.write("Hello, Serial Port!");
    } else {
        qDebug() << "Failed to open serial port";
    }

    return a.exec();
}