exception: Document header
diff --git a/src/sdeventplus/exception.hpp b/src/sdeventplus/exception.hpp
index 5412d70..697ccb1 100644
--- a/src/sdeventplus/exception.hpp
+++ b/src/sdeventplus/exception.hpp
@@ -5,9 +5,18 @@
namespace sdeventplus
{
+/** @class SdEventError
+ * @brief Holds information about underlying sd_event
+ * issued errors
+ */
class SdEventError final : public std::system_error
{
public:
+ /** @brief Creates a new SdEventError from error data
+ *
+ * @param[in] r - The postive errno code
+ * @param[in] prefix - The prefix string to display in the what()
+ */
SdEventError(int r, const char* prefix);
};