[Interest] Odd error using QSerialPort with hardware flow control

Michael R Nelson mnelson at sutron.com
Fri Oct 23 21:28:45 CEST 2015


Hi,

When using offline install of Qt 5.5.1 QSerialPort in Windows7/64bit, if I set the hardware flow control flag, errors are signaled on most port operations (e.g., open, read, and write). The error type is QSerialPort::UnsupportedOperationError, and the error string is "The parameter is incorrect." This only occurs if the hardware flow control flag is set, i.e., m_serialPort->setFlowControl(QSerialPort::HardwareControl).

Have others run into this? Have any work-arounds been identified?

Thanks,
Mike


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