+#int yaffs_unmount(const YCHAR *path, int force) ;
+yaffs_unmount2 = ylib.yaffs_unmount2
+yaffs_unmount2.argtypes = [c_char_p, c_int]
+yaffs_unmount2.restype = c_int
+
+#int yaffs_remount(const YCHAR *path, int force, int readOnly) ;
+yaffs_remount = ylib.yaffs_remount
+yaffs_remount.argtypes = [c_char_p, c_int, c_int]
+yaffs_remount.restype = c_int
+