Simulating button press

[tomaae]

I'm trying to simulate button press, but its not reliable at all. Most of the time there is no reaction at all.
Are there any limitations to simulated button presses on joystick? My guess is that press is too short to be registered.

For context, I'm using simplerotary library and I want encoder turns to be passed via controller as button presses:

  int r1Dir = rotary1.rotate();
  if ( r1Dir == 1  ) {// CW
      controllerData.buttonArray[(4 - 2) / 8] |= HIGH << ((4 - 2) % 8);
  }