Hi,

I have not this issue.

* QtSerialPort from the 5.6 branch
* Windows 10
* On-board serial port (where the pins 2-3, 7-8 are connected)
* The Terminal example

Please provide a minimal example which reproduces this issue (also give 
more info about your serial port type).

BR,
Denis

23.10.2015 22:28, Michael R Nelson пишет:
> 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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