fb_cnattach
extern void fb_cnattach(bus_space_tag_t, bus_addr_t, void *);
fb_cnattach(tag, BASE_FB2, (void *)BASE_FB);
void fb_cnattach(bus_space_tag_t, bus_addr_t, void *);
void fb_cnattach(void);
void fb_cnattach(void);
fb_cnattach();