diff -u old/gpsctl.c new/gpsctl.c
--- old/gpsctl.c	2017-01-03 15:57:50.517120891 -0600
+++ new/gpsctl.c	2017-01-03 18:31:21.421101434 -0600
@@ -175,7 +175,7 @@
     int option, status;
     char *device = NULL, *devtype = NULL;
     char *speed = NULL, *control = NULL, *rate = NULL;
-    bool to_binary = false, to_nmea = false, reset = false;
+    bool to_binary = false, to_nmea = false, reset = false, control_string = false;
     bool lowlevel=false, echo=false;
     struct gps_data_t gpsdata;
     const struct gps_type_t *forcetype = NULL;
@@ -205,6 +205,7 @@
 #ifdef CONTROLSEND_ENABLE
 	    control = optarg;
 	    lowlevel = true;
+	    control_string = true;
 	    if ((cooklen = hex_escapes(cooked, control)) <= 0) {
 		gpsd_log(&context.errout, LOG_ERROR,
 			 "invalid escape string (error %d)\n", (int)cooklen);
@@ -704,7 +705,8 @@
 	    }
 	}
 
-	(void)printf("%s identified as a %s at %u baud.\n",
+	if(!control_string)
+		(void)printf("%s identified as a %s at %u baud.\n",
                        device, gpsd_id(&session),
                        session.gpsdata.dev.baudrate);