-#define _FS_RPATH 0 /* 0:Disable or 1:Enable */
-/* When _FS_RPATH is set to 1, relative path feature is enabled and f_chdir,
-/ f_chdrive function are available.
-/ Note that output of the f_readdir function is affected by this option. */
+#define _FS_RPATH 0 /* 0 to 2 */
+/* The _FS_RPATH option configures relative path feature.
+/
+/ 0: Disable relative path feature and remove related functions.
+/ 1: Enable relative path. f_chdrive() and f_chdir() are available.
+/ 2: f_getcwd() is available in addition to 1.
+/
+/ Note that output of the f_readdir fnction is affected by this option. */