update/extend doxygen documentation
It's a pity that even with this patch we still are fare away from having
the whole API documented. However, at least we have a more solid
foundation. Updates not only extend the documentation, but also make
sure it is rendered properly in the doxygen HTML.
Change-Id: I1344bd1a6869fb00de7c1899a8db93bba9bafce3
diff --git a/src/signal.c b/src/signal.c
index 8402591..1d11617 100644
--- a/src/signal.c
+++ b/src/signal.c
@@ -27,7 +27,9 @@
/*! \addtogroup signal
* @{
+ * \brief Generic signalling/notification infrastructure
*/
+
/*! \file signal.c */