Index: uspace/lib/c/include/ipc/logger.h
===================================================================
--- uspace/lib/c/include/ipc/logger.h	(revision 6e596bd6516514d31b35e45992bf0fa4da3c88b4)
+++ uspace/lib/c/include/ipc/logger.h	(revision 5239e1703e8da9d0e5f2591231d7329601901a5d)
@@ -37,11 +37,33 @@
 
 typedef enum {
+	/** Set (global) default displayed logging level.
+	 *
+	 * Arguments: new log level.
+	 * Returns: error code
+	 */
 	LOGGER_CONTROL_SET_DEFAULT_LEVEL = IPC_FIRST_USER_METHOD,
+	/** Set displayed level for given log.
+	 *
+	 * Arguments: new log level.
+	 * Returns: error code
+	 * Followed by: string with full log name.
+	 */
 	LOGGER_CONTROL_SET_LOG_LEVEL
 } logger_control_request_t;
 
 typedef enum {
-	/** Followed by STRING, returns ID to be used for CREATE_SUB_LOG */
+	/** Create new log.
+	 *
+	 * Arguments: parent log id (0 for top-level log).
+	 * Returns: error code, log id
+	 * Followed by: string with log name.
+	 */
 	LOGGER_WRITER_CREATE_LOG = IPC_FIRST_USER_METHOD,
+	/** Write a message to a given log.
+	 *
+	 * Arguments: log id, message severity level (log_level_t)
+	 * Returns: error code
+	 * Followed by: string with the message.
+	 */
 	LOGGER_WRITER_MESSAGE
 } logger_writer_request_t;