WSP_CLAMP
WSP_CLAMP(ptun->scale_factor, 1, 63);
WSP_CLAMP(ptun->scroll_finger_count, 0, 3);
WSP_CLAMP(ptun->horizontal_swipe_finger_count, 0, 3);
WSP_CLAMP(ptun->z_factor, 0, 63);
WSP_CLAMP(ptun->z_invert, 0, 1);
WSP_CLAMP(ptun->t_factor, 0, 63);
WSP_CLAMP(ptun->t_invert, 0, 1);
WSP_CLAMP(ptun->pressure_touch_threshold, 1, 255);
WSP_CLAMP(ptun->pressure_untouch_threshold, 1, 255);
WSP_CLAMP(ptun->pressure_tap_threshold, 1, 255);
WSP_CLAMP(ptun->max_finger_diameter, 1, 2400);
WSP_CLAMP(ptun->max_scroll_finger_distance, 1, 16384);
WSP_CLAMP(ptun->max_double_tap_distance, 1, 16384);
WSP_CLAMP(ptun->scr_threshold, 1, 255);
WSP_CLAMP(ptun->enable_single_tap_clicks, 0, 1);
WSP_CLAMP(ptun->enable_single_tap_movement, 0, 1);