Hello,

I have a FTDI, USB to Serial connected to my own device, I try to list all port (as I can have multiple device connected), open a communication port & send data to my device.

I have no problem for communicating on Windows, but on Linux & Mac I can’t get the informations on my serial port.

This is the code I used to show port :

Qt Code: 
  1. QStringList SerialPortChannel::availablePorts()
  2. {
  3.     QStringList ports;
  4.  
  5.     for (QSerialPortInfo port : QSerialPortInfo::availablePorts())
  6.     {
  7.         //Their is some sorting to do for just list the port I want, with vendor Id & product Id
  8.         qDebug() << port.portName() << port.vendorIdentifier() << port.productIdentifier()
  9.                  << port.hasProductIdentifier() << port.hasVendorIdentifier() << port.isBusy();
  10.         ports += port.portName();
  11.     }
  12.     return ports;
  13. }
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This is the my class constructor where I open the port :

Qt Code: 
  1. SerialPortChannel::SerialPortChannel(QString port)
  2.     : QObject()
  3.     , m_port(port)
  4. {
  5.     online = m_port.open(QIODevice::WriteOnly);
  6.     if(online)
  7.         qDebug() << "Connected to : " << port;
  8.  
  9.     //Configure the port
  10.     m_port.setBaudRate(QSerialPort::Baud115200);
  11.     m_port.setDataBits(QSerialPort::Data8);
  12.     m_port.setStopBits(QSerialPort::OneStop);
  13.     m_port.setParity(QSerialPort::NoParity);
  14.     m_port.setFlowControl(QSerialPort::NoFlowControl);
  15.  
  16. }
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This work well on Windows, I can see my port.

On Linux (Tested on Ubuntu 13.04 & Mint 15 Olivia ) : I can see my device with some name like : ttysUSB0, but any other informations like vendor id and product id are null. I can’t open a communication, open return false. I have all informations listed on my OS, so it’s a bug in my application.

On Mac (10.8.5) , I can’t even see the name and all others informations, but the device is connected to my Os as I can see him in the system info panel.

What did I do wrong ? Is it something to configure on Linux or Mac ?