Index: generic/src/synch/condvar.c
===================================================================
--- generic/src/synch/condvar.c	(revision 9179d0a6299a4d323ae9d92fa05a3ba1b5aef960)
+++ generic/src/synch/condvar.c	(revision 281224aeb3d8da7b9f59d258df830ad80784c70c)
@@ -25,4 +25,9 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file	condvar.c
+ * @brief	Condition variables.
  */
 
Index: generic/src/synch/futex.c
===================================================================
--- generic/src/synch/futex.c	(revision 9179d0a6299a4d323ae9d92fa05a3ba1b5aef960)
+++ generic/src/synch/futex.c	(revision 281224aeb3d8da7b9f59d258df830ad80784c70c)
@@ -28,6 +28,8 @@
 
 /**
- * Kernel backend for futexes.
- * Deallocation of orphaned kernel-side futex structures is not currently implemented.
+ * @file	futex.c
+ * @brief	Kernel backend for futexes.
+ *
+ * @todo Deallocation of orphaned kernel-side futex structures is not currently implemented.
  */
 
Index: generic/src/synch/mutex.c
===================================================================
--- generic/src/synch/mutex.c	(revision 9179d0a6299a4d323ae9d92fa05a3ba1b5aef960)
+++ generic/src/synch/mutex.c	(revision 281224aeb3d8da7b9f59d258df830ad80784c70c)
@@ -27,4 +27,9 @@
  */
 
+/**
+ * @file	mutex.c
+ * @brief	Mutexes.
+ */
+ 
 #include <synch/mutex.h>
 #include <synch/semaphore.h>
Index: generic/src/synch/semaphore.c
===================================================================
--- generic/src/synch/semaphore.c	(revision 9179d0a6299a4d323ae9d92fa05a3ba1b5aef960)
+++ generic/src/synch/semaphore.c	(revision 281224aeb3d8da7b9f59d258df830ad80784c70c)
@@ -25,4 +25,9 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file	semaphore.c
+ * @brief	Semaphores.
  */
 
Index: generic/src/synch/spinlock.c
===================================================================
--- generic/src/synch/spinlock.c	(revision 9179d0a6299a4d323ae9d92fa05a3ba1b5aef960)
+++ generic/src/synch/spinlock.c	(revision 281224aeb3d8da7b9f59d258df830ad80784c70c)
@@ -27,4 +27,9 @@
  */
 
+/**
+ * @file	spinlock.c
+ * @brief	Spinlocks.
+ */
+ 
 #include <synch/spinlock.h>
 #include <atomic.h>