Display vs. touch resolution

General discussion
1

Is there common to have both display and touch of the same resolution or there are cases where might differ and what consequences are for the LVGL - can I set up on different?

Thank you.

2

The read_cb of the touchpad should convert the touch coordinates to the display’s resolution.

3

read_cb is a function pointer called periodically to report the state of an input device. In the case of touchscreen what type of device is it?

  • LV_INDEV_TYPE_POINTER touchpad or mouse
  • LV_INDEV_TYPE_KEYPAD keyboard or keypad
  • LV_INDEV_TYPE_ENCODER encoder with left/right turn and push options
  • LV_INDEV_TYPE_BUTTON external buttons virtually pressing the screen

Or is it going to depend on what sunscreen is targeted for?

4

In my mind “touchpad” == “touchscreen”.