fbcurpos
struct fbcurpos pos; /* position on display */
struct fbcurpos hot; /* hot-spot within cursor */
struct fbcurpos size; /* number of valid bits in image & mask */
#define FBIOSCURPOS _IOW('F', 26, struct fbcurpos)
#define FBIOGCURPOS _IOW('F', 27, struct fbcurpos)
#define FBIOGCURMAX _IOR('F', 28, struct fbcurpos)