Problem keyboard input with Qt + DirectFB.

[Sung Sean]

Hello~

I using Qt 4.8.6 with DirectFB 1.2.8 on my ARM device.

When I enable USB keyboard via linuxinput, Qt event->key() always return 0 in keyPressEvent().

Here is my test code and log message.

Could you let me know some check point or functions?
Someone help me, please~

• Test Code
  void myWidget::keyPressEvent(QKeyEvent *event)
  {
  qDebug() << "Key Press" << event->key() ;
  }

• Result

       (c) 2001-2008  The world wide DirectFB Open Source Community
       (c) 2000-2004  Convergence (integrated media) GmbH
     ----------------------------------------------------------------
  
  

() DirectFB/Core: Single Application Core. (2015-05-12 06:23) [ DEBUG ]
() Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>...
() DirectFB/Input: USB USB Keykoard (1) 0.1 (directfb.org)
() Direct/Thread: Started 'Linux Input' (-1) [INPUT OTHER/OTHER 0/0] <8388608>...
() DirectFB/Input: USB USB Keykoard (2) 0.1 (directfb.org)
() DirectFB/Graphics: Generic Software Rasterizer 0.6 (directfb.org)
() DirectFB/Core/WM: Default 0.3 (directfb.org)
() FBDev/Surface: Allocated 800x600 16 bit ARGB1555 buffer (index 0) at offset 0 and pitch 1600.
(!!!) *** WARNING [letting unprivileged IDirectFBDisplayLayer::GetSurface() call pass until cooperative level handling is finished] *** [idirectfbdisplaylayer.c:174 in IDirectFBDisplayLayer_GetSurface()]
() Direct/Thread: Started 'EventBufferFeed' (-1) [MESSAGING OTHER/OTHER 0/0] <8388608>...
() Direct/Thread: Started 'EventBufferFeed' (-1) [MESSAGING OTHER/OTHER 0/0] <8388608>...
(*) Direct/Interface: Loaded 'PNG' implementation of 'IDirectFBImageProvider'.
Key Press 0
Key Press 0

• DirectFB debug log
  (-) [Linux Input 100.206] ( 1340) Core/Input: dfb_input_dispatch( 0x1d2b1a8, 0x43b80bdc )
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: -> (01) KEYPRESS
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: -> TIMESTAMP 208.524981
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: -> KEYCODE 30
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: -> KEYID 0xf601
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: => TIMESTAMP 208.524981
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: => KEYCODE 30
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: => KEYID 0xf601
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: => KEYSYMBOL 0x0000
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: => MODIFIERS 0x0000
  (-) [Linux Input 100.209] ( 1340) Core/Input/Evt: => LOCKS 0x0000
  (-) [Linux Input 100.217] ( 1340) Core/WindowStack: _dfb_windowstack_inputdevice_listener( 0x43b80bdc, 0x1d39580 )
  (-) [Linux Input 100.217] ( 1340) Core/WM: dfb_wm_process_input( 0x1d39580, 0x43b80bdc )
  (-) [Linux Input 100.221] ( 1340) WM/Default: Processing input event (device 0, type 0x00000001, flags 0x000000f9)...
  (-) [Linux Input 100.224] ( 1340) IDirectFBWindow: IDirectFBWindow_React()
  (-) [Linux Input 100.224] ( 1340) IDFBEventBuffer: IDirectFBEventBuffer_InputReact( 0x43b80bdc, 0x1d36448 ) <- type 000001
  (-) [Linux Input 100.224] ( 1340) Direct/Mem: + 92 bytes [idirectfbinputbuffer.c:827 in IDirectFBEventBuffer_InputReact()]
  (-) [EventBufferFeed 100.225] ( 1351) IDFBEventBuffer: Going to write 80 bytes to file descriptor 14...
  (-) [EventBufferFeed 100.231] ( 1351) IDFBEventBuffer: ...wrote 80 bytes to file descriptor 14.
  (-) [EventBufferFeed 100.231] ( 1351) Direct/Mem: - number of bytes of item [idirectfbinputbuffer.c:906 in IDirectFBEventBuffer_Feed()] -> 0x1d936f8
  Key Press 0

Thank you.