From fab30e07c1b6d916f3b35f44d417670ef13cbe0c Mon Sep 17 00:00:00 2001
From: Michael Black <mdblack98@yahoo.com>
Date: Mon, 9 Sep 2019 12:49:11 -0500
Subject: [PATCH] Add some debug for flush

---
 src/serial.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/serial.c b/src/serial.c
index b34b68c48..6f3716aba 100644
--- a/src/serial.c
+++ b/src/serial.c
@@ -568,11 +568,14 @@ int HAMLIB_API serial_flush(hamlib_port_t *p)
          * if fd corresponds to a microHam device drain the line
          * (which is a socket) by reading until it is empty.
          */
-        while (read(p->fd, buf, 32) > 0) {
+        int n;
+        while ((n=read(p->fd, buf, 32)) > 0) {
+            rig_debug(RIG_DEBUG_VERBOSE, "%s: flushed %d bytes\n", __func__, n);
             /* do nothing */
         }
         return RIG_OK;
     }
+    rig_debug(RIG_DEBUG_VERBOSE, "%s: tcflush\n", __func__);
     tcflush(p->fd, TCIFLUSH);
     return RIG_OK;
 }