From ca3f19fbd6ea69ed38443a93a4da6c88ba0cef5d Mon Sep 17 00:00:00 2001
From: Mike Black W9MDB <mdblack98@yahoo.com>
Date: Sun, 23 Jul 2023 14:55:27 -0500
Subject: [PATCH] Remove rig_flush from icom/frame.c Speeds up Windows serial
 i/o by about 6ms per call for Icom rigs
 https://github.com/Hamlib/Hamlib/issues/1123

---
 rigs/icom/frame.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rigs/icom/frame.c b/rigs/icom/frame.c
index 5b9e9bc81..eb54dd4f8 100644
--- a/rigs/icom/frame.c
+++ b/rigs/icom/frame.c
@@ -158,7 +158,8 @@ int icom_one_transaction(RIG *rig, unsigned char cmd, int subcmd,
     set_transaction_active(rig);
 
 collision_retry:
-    rig_flush(&rs->rigport);
+    // does not seem necessary and add 6ms overhead per call in Windows
+    //rig_flush(&rs->rigport);
 
     if (data_len) { *data_len = 0; }