From 9b1e0aa07de7443555bf7a01c50639fb47ad883b Mon Sep 17 00:00:00 2001
From: Bill Somerville <bill@classdesign.com>
Date: Thu, 28 May 2020 13:57:57 +0100
Subject: [PATCH] Fix regression with slow responses from SmartSDR causing
 errors

This has been verified as a fix using SmartSDR v1.10.16 combined with
a FlexRadio 6500.
---
 rigs/kenwood/kenwood.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/rigs/kenwood/kenwood.c b/rigs/kenwood/kenwood.c
index 8cff18101..adcd69d55 100644
--- a/rigs/kenwood/kenwood.c
+++ b/rigs/kenwood/kenwood.c
@@ -360,9 +360,16 @@ transaction_read:
                   retval, retry_read, rs->rigport.retry);
 
         // only retry if we expect a response from the command
-        if (datasize && retry_read++ < rs->rigport.retry)
+        if (retry_read++ < rs->rigport.retry)
         {
-            goto transaction_write;
+            if (datasize)
+            {
+                goto transaction_write;
+            }
+            else if (-RIG_ETIMEOUT == retval)
+            {
+                goto transaction_read;
+            }
         }
 
         goto transaction_quit;