wsmouse_motion
wsmouse_motion(sc->sc_wsmousedev, dx, dy, dz, 0);
wsmouse_motion(ms->sc_wsmousedev, -dx, dy, dz, dw);
void wsmouse_motion(struct device *, int, int, int, int);
wsmouse_motion((sc_wsmousedev), (dx), (dy), (dz), (dw));\