setting QSerialPort port

[saman_artorious]

The program crashes when I try to set qserialport instance setting, such as setBaudRate. it causes segmentation fault.

#include "mainwindow.h"
#include <QApplication>
 
#include <QtCore/QCoreApplication>
#include <QtCore/QDebug>
 
#include <QtSerialPort/QSerialPort>
#include <QtSerialPort/QSerialPortInfo>
 
QT_USE_NAMESPACE
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();
 
 
        QSerialPort serial;
 
        QString path;
 
        path.append("/dev/ttyS0");
 
        serial.setBaudRate(QSerialPort::Baud9600);
 
        serial.close();
 
    return a.exec();
}

#include "mainwindow.h"
#include <QApplication>

#include <QtCore/QCoreApplication>
#include <QtCore/QDebug>

#include <QtSerialPort/QSerialPort>
#include <QtSerialPort/QSerialPortInfo>

QT_USE_NAMESPACE

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();


        QSerialPort serial;

        QString path;

        path.append("/dev/ttyS0");

        serial.setBaudRate(QSerialPort::Baud9600);

        serial.close();

    return a.exec();
}

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As my system is Linux, should I use a posix version of the function to open port!
like:

posix_openpt()

posix_openpt()

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i would thank if run the code in your system n see if you get the same segmentation fault when setting port settings.

[kuzulis]

I did not crash. What am I doing wrong?

PS:
1. Before posting the nonsense, you'd at least have checked that you have causes crash...
2. Also you didn't read documentation and didn't look examples. Otherwise you wouldn't write this nonsense.

I won't answer any more your questions about QtSerialPort.

#include <QApplication>
#include <QMainWindow>
#include <QtSerialPort/QSerialPort>
#include <QtSerialPort/QSerialPortInfo>
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
 
    QMainWindow w;
    w.show();
 
    QSerialPort serial;
 
    QString path;
 
    path.append("/dev/ttyS0");
 
    serial.setBaudRate(QSerialPort::Baud9600);
 
    serial.close();
 
    return a.exec();
}

#include <QApplication>
#include <QMainWindow>
#include <QtSerialPort/QSerialPort>
#include <QtSerialPort/QSerialPortInfo>

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

    QMainWindow w;
    w.show();

    QSerialPort serial;

    QString path;

    path.append("/dev/ttyS0");

    serial.setBaudRate(QSerialPort::Baud9600);

    serial.close();
    
    return a.exec();
}

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[saman_artorious]

I did not crash. What am I doing wrong?

PS:
1. Before posting the nonsense, you'd at least have checked that you have causes crash...
2. Also you didn't read documentation and didn't look examples. Otherwise you wouldn't write this nonsense.

first of all, this was the exact qt doc. example, I shortened. second, you never have to reply to any post, this is the second time you are replying nonsensely and aggressively to my post. please NEVER EVER REPLY TO MY POSTS.

[wysota]

I think what kuzulis meant was your statement about posix_openpt().

[reasra]

I think you have to use QSerialPort as a pointer

I don't have the documentation in front of me, but here's some pseudo code:

QSerialPort *serial;
serial->setName("MYPORT");
serial->open();
serial->setBaudRate(9600);

QSerialPort *serial;
serial->setName("MYPORT");
serial->open();
serial->setBaudRate(9600);

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I distinctly remember the little terminal GUI example that comes with QSerialPort was immensely helpful.

[wally123]

Hello,

I distinctly remember the little terminal GUI example that comes with QSerialPort was immensely helpful.

agree