config BR2_PACKAGE_QT5SERIALPORT bool "qt5serialport" select BR2_PACKAGE_QT5BASE help Qt is a cross-platform application and UI framework for developers using C++. Qt Serial Port provides the basic functionality, which includes configuring, I/O operations, getting and setting the control signals of the RS-232 pinouts. http://doc.qt.io/qt-5/qtserialport-index.html