Index: uspace/srv/fs/exfat/exfat_directory.c
===================================================================
--- uspace/srv/fs/exfat/exfat_directory.c	(revision e090244cef809d716b5ae82565ed1b14ad6dca26)
+++ uspace/srv/fs/exfat/exfat_directory.c	(revision 7f0c08c5aa8d178e0a896447ae1d5182b5360932)
@@ -227,4 +227,16 @@
 }
 
+int exfat_directory_write_file(exfat_directory_t *di, const char *name)
+{
+	/* TODO */
+	return EOK;
+}
+
+int exfat_directory_erase_file(exfat_directory_t *di, aoff64_t pos)
+{
+	/* TODO */
+	return EOK;
+}
+
 
 /**
Index: uspace/srv/fs/exfat/exfat_directory.h
===================================================================
--- uspace/srv/fs/exfat/exfat_directory.h	(revision e090244cef809d716b5ae82565ed1b14ad6dca26)
+++ uspace/srv/fs/exfat/exfat_directory.h	(revision 7f0c08c5aa8d178e0a896447ae1d5182b5360932)
@@ -65,9 +65,11 @@
 extern int exfat_directory_read_file(exfat_directory_t *di, char *name, 
     size_t size, exfat_file_dentry_t *df, exfat_stream_dentry_t *ds);
+extern int exfat_directory_write_file(exfat_directory_t *di, const char *name);
+extern int exfat_directory_erase_file(exfat_directory_t *di, aoff64_t pos);
 
-
+/*
 extern int exfat_directory_expand(exfat_directory_t *di);
 extern int exfat_directory_lookup_free(exfat_directory_t *di, size_t count);
-
+*/
 
 #endif