From 2dbf9a9fce36b62cc440f2197f8570e587fe3860 Mon Sep 17 00:00:00 2001
From: Euan Torano <euan@torano.co.uk>
Date: Mon, 28 Mar 2022 20:12:23 +0100
Subject: [PATCH] Ref #46 - altered `flush()` for posx to use tcdrain rather
 than tcflush

---
 src/serial/private/serialport/serialport_posix.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/serial/private/serialport/serialport_posix.nim b/src/serial/private/serialport/serialport_posix.nim
index 4877ceb..fa94937 100644
--- a/src/serial/private/serialport/serialport_posix.nim
+++ b/src/serial/private/serialport/serialport_posix.nim
@@ -834,7 +834,7 @@ proc flush*(port: SerialPort | AsyncSerialPort) =
   if not port.isOpen():
     raise newException(InvalidSerialPortStateError, "Port must be open in order to be flushed")
 
-  if tcflush(cint(port.handle), TCIOFLUSH) == -1:
+  if tcdrain(cint(port.handle)) == -1:
     raiseOSError(osLastError())
 
 proc close*(port: SerialPort | AsyncSerialPort) =