1 files changed, 3 insertions, 0 deletions
diff --git a/zaptel.h b/zaptel.h
index c666c80..55542f3 100644
--- a/zaptel.h
+++ b/zaptel.h
@@ -1347,6 +1347,9 @@ struct zt_dynamic_driver {
 	/* Transmit a given message */
 	int (*transmit)(void *tpipe, unsigned char *msg, int msglen);
 
+	/* Flush any pending messages */
+	int (*flush)(void);
+
 	struct zt_dynamic_driver *next;
 };