Index: uspace/lib/ext4/libext4_inode.c
===================================================================
--- uspace/lib/ext4/libext4_inode.c	(revision 79b5bc9760270df2382f9c25d0704d1de300629e)
+++ uspace/lib/ext4/libext4_inode.c	(revision da9f220d7be64874a7244368df83929f6e825677)
@@ -156,6 +156,8 @@
 }
 
-/** TODO comment
- *
+/** Get time, when i-node was last changed.
+ *
+ * @param inode		i-node
+ * @return			time of the last change (POSIX)
  */
 uint32_t ext4_inode_get_change_inode_time(ext4_inode_t *inode)
@@ -164,6 +166,8 @@
 }
 
-/** TODO comment
- *
+/** Set time, when i-node was last changed.
+ *
+ * @param inode		i-node
+ * @param time		time of the last change (POSIX)
  */
 void ext4_inode_set_change_inode_time(ext4_inode_t *inode, uint32_t time)
@@ -172,6 +176,8 @@
 }
 
-/** TODO comment
- *
+/** Get time, when i-node content was last modified.
+ *
+ * @param inode		i-node
+ * @return			time of the last content modification (POSIX)
  */
 uint32_t ext4_inode_get_modification_time(ext4_inode_t *inode)
@@ -180,6 +186,8 @@
 }
 
-/** TODO comment
- *
+/** Set time, when i-node content was last modified.
+ *
+ * @param inode		i-node
+ * @param time		time of the last content modification (POSIX)
  */
 void ext4_inode_set_modification_time(ext4_inode_t *inode, uint32_t time)