-#define CHR_EVENT_BREAK 0 /* serial break char */
-#define CHR_EVENT_FOCUS 1 /* focus to this terminal (modal input needed) */
-#define CHR_EVENT_RESET 2 /* new connection established */
+#define CHR_EVENT_BREAK 0 /* serial break char */
+#define CHR_EVENT_FOCUS 1 /* focus to this terminal (modal input needed) */
+#define CHR_EVENT_OPENED 2 /* new connection established */
+#define CHR_EVENT_MUX_IN 3 /* mux-focus was set to this terminal */
+#define CHR_EVENT_MUX_OUT 4 /* mux-focus will move on */
+#define CHR_EVENT_CLOSED 5 /* connection closed */