From 1bf551e0252c0dee88785679d45170060b19a602 Mon Sep 17 00:00:00 2001
From: Jack Doan <jackdoan@rivian.com>
Date: Fri, 30 Sep 2022 13:22:52 -0500
Subject: [PATCH] Fix ResetInputBuffer and ResetOutputBuffer on Darwin

---
 serial_darwin.go             |  8 ++++++++
 serial_resetbuf_linux_bsd.go | 19 +++++++++++++++++++
 serial_unix.go               |  8 --------
 3 files changed, 27 insertions(+), 8 deletions(-)
 create mode 100644 serial_resetbuf_linux_bsd.go

diff --git a/serial_darwin.go b/serial_darwin.go
index ea1b99f..f30dc8d 100644
--- a/serial_darwin.go
+++ b/serial_darwin.go
@@ -29,3 +29,11 @@ func (port *unixPort) setSpecialBaudrate(speed uint32) error {
 	const kIOSSIOSPEED = 0x80045402
 	return unix.IoctlSetPointerInt(port.handle, kIOSSIOSPEED, int(speed))
 }
+
+func (port *unixPort) ResetInputBuffer() error {
+	return unix.IoctlSetPointerInt(port.handle, ioctlTcflsh, unix.TCIFLUSH)
+}
+
+func (port *unixPort) ResetOutputBuffer() error {
+	return unix.IoctlSetPointerInt(port.handle, ioctlTcflsh, unix.TCOFLUSH)
+}
diff --git a/serial_resetbuf_linux_bsd.go b/serial_resetbuf_linux_bsd.go
new file mode 100644
index 0000000..c6e1a4a
--- /dev/null
+++ b/serial_resetbuf_linux_bsd.go
@@ -0,0 +1,19 @@
+//
+// Copyright 2014-2021 Cristian Maglie. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+//
+
+// +build linux freebsd openbsd
+
+package serial
+
+import "golang.org/x/sys/unix"
+
+func (port *unixPort) ResetInputBuffer() error {
+	return unix.IoctlSetInt(port.handle, ioctlTcflsh, unix.TCIFLUSH)
+}
+
+func (port *unixPort) ResetOutputBuffer() error {
+	return unix.IoctlSetInt(port.handle, ioctlTcflsh, unix.TCOFLUSH)
+}
diff --git a/serial_unix.go b/serial_unix.go
index 4a8ef66..e171001 100644
--- a/serial_unix.go
+++ b/serial_unix.go
@@ -117,14 +117,6 @@ func (port *unixPort) Write(p []byte) (n int, err error) {
 	return
 }
 
-func (port *unixPort) ResetInputBuffer() error {
-	return unix.IoctlSetInt(port.handle, ioctlTcflsh, unix.TCIFLUSH)
-}
-
-func (port *unixPort) ResetOutputBuffer() error {
-	return unix.IoctlSetInt(port.handle, ioctlTcflsh, unix.TCOFLUSH)
-}
-
 func (port *unixPort) SetMode(mode *Mode) error {
 	settings, err := port.getTermSettings()
 	if err != nil {