Simulte touch event from Android kernel

I have developed a new touchscreen driver in android kernel. And my goal is to simulate a touchscreen event. Therefore, in the probe of my new driver, I highlight the necessary keys:

input_set_abs_params(in_dev, ABS_MT_TRACKING_ID, 10000, 0, 0);
input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0, 1000, 0, 0);
input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0,1000, 0, 0);
input_set_abs_params(in_dev, ABS_MT_TOUCH_MAJOR,0,1000,0, 0);
input_set_abs_params(in_dev, ABS_MT_TOUCH_MINOR,0,1000,0, 0);

      

        
        
        
      

    

And in code I am trying to simulate a touchscreen event:

input_event(in_dev, EV_ABS, ABS_MT_TRACKING_ID, ++counter);
input_event(in_dev, EV_KEY, BTN_TOUCH, 1);
input_event(in_dev, EV_KEY, BTN_TOOL_FINGER, 1);

input_event(in_dev, EV_ABS, ABS_MT_POSITION_X, 0x00000336);
input_event(in_dev, EV_ABS, ABS_MT_POSITION_Y, 0x0000059a);
input_event(in_dev, EV_ABS, ABS_MT_TOUCH_MAJOR, 7);
input_event(in_dev, EV_ABS, ABS_MT_TOUCH_MINOR, 6);

input_event(in_dev, EV_ABS, ABS_MT_TRACKING_ID, 0xffffffff); 
input_event(in_dev, EV_KEY, BTN_TOUCH, 0);
input_event(in_dev, EV_KEY, BTN_TOOL_FINGER, 0);

      

        
        
        
      

    

Be aware that I can see almost all events in my shell with correct values ​​(only BTN_TOUCH event, which I cannot see in the shell). And besides, I see a circle in the corner of the phone screen. But this circle does nothing. After a few seconds, it just disappears.

I will share your help. I feel like something is missing here ...