#define TP_DEF_MB_SCROLL (0x00)
#define TP_DEF_SCROLL_DELAY (200)

#define PSMOUSE_TRACKPOINT 42

	unsigned char mb_scroll, mb_was_down, scrolling;
	unsigned long scroll_delay, last_mb_press;

	int xacc, yacc;
};

extern void trackpoint_sim_scroll(struct psmouse *psmouse);