Kirkstone - Weston cursor

In both Yocto Kirkstone and Hardknott, weston black cursor is following USB mouse movement only, we need to link it also to the touchscreen input events. First of all, we need to understand which event/input or device the cursor is listening to. Then, we have do make it follow the event entry created by touchscreen usb driver (like /dev/input/eventX or /dev/input/touchscreen0 maybe?)