int fdt_create_empty_tree(void *buf, int bufsize)
int fdt_open_into(const void *fdt, void *buf, int bufsize)
int fdt_finish_reservemap(void *fdt)
int fdt_create(void *buf, int bufsize)
int fdt_finish(void *fdt)
int fdt_begin_node(void *fdt, const char *name)
int fdt_end_node(void *fdt)