double clearing buffer

afsk/main.c

@@ -1261,6 +1261,12 @@ void get_tlm_fox() {
         while ((charss--> 0))
           c = (char) serialGetchar(uart_fd); // clear buffer
 	      
+        charss = (char) serialDataAvail(uart_fd);
+        if (charss != 0)
+        printf("Clearing buffer of %d chars \n", charss);
+        while ((charss--> 0))
+          c = (char) serialGetchar(uart_fd); // clear buffer
+
         unsigned int waitTime;
         int i = 0;
         serialPutchar(uart_fd, '?');