Backtab, KEY_CLEAR and KEY_BACK not handled by QML

[carloval]

Hello

I created a custom keyboard driver for our project.
I installed the module and checked the available keys through evtest
However there are 3 keys that are not recognized when I run a QT QML application.

• KEY_CLEAR
• KEY_BACK
• Back Tab
  In the QT QML application i created a log where it will display a key event.
  If KEY_CLEAR and KEY_BACK are pressed no events can be seen
  but if i pressed other keys an event is seen.