[SOLVED] How can i communicate Android device with using com port?

How can i communicate Android device with using com port?

I am working on Android project using Qt and i need to communicate between mobile phone and computer. I want to make little demo with using Putty.I want to send data mobile phone over USB cable and display on Putty to ensure communication. When i search Serial port on mobile phone const QList<QSerialPortInfo> &info = QSerialPortInfo::availablePorts(); info.count() is equal zero. Application can not find any serial port on mobile phone but i can send or receive data (drag and drop) over USB cable. How can i communicate to Android device with using Serial Port?

Thank you for answers..

Solution

I have discovered what i did wrong. The phone does not support OTG feature, so i could not see serial port by using qt serialport library. If anyone faces this problem, i hope this works for him/her.