+int yaffs_mount(const YCHAR *path) ;
+int yaffs_unmount(const YCHAR *path) ;
+
+int yaffs_sync(const YCHAR *path) ;
+
+int yaffs_symlink(const YCHAR *oldpath, const YCHAR *newpath);
+int yaffs_readlink(const YCHAR *path, YCHAR *buf, int bufsiz);
+
+int yaffs_link(const YCHAR *oldpath, const YCHAR *newpath);
+int yaffs_mknod(const YCHAR *pathname, mode_t mode, dev_t dev);