From fe9ccd37d9fdc74e1c4c7b3735f6af37dd7282ea Mon Sep 17 00:00:00 2001
From: Cristian Maglie <c.maglie@bug.st>
Date: Sat, 13 Dec 2014 20:17:40 +0430
Subject: [PATCH] Windows: added SetSpeed

---
 serial/native_windows.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/serial/native_windows.go b/serial/native_windows.go
index 1e9e754..407c0f7 100644
--- a/serial/native_windows.go
+++ b/serial/native_windows.go
@@ -178,6 +178,23 @@ const (
 	TWOSTOPBITS  = 2
 )
 
+func (port windowsSerialPort) SetSpeed(baudrate int) error {
+	params := DCB{}
+	if err := GetCommState(port.Handle, &params); err != nil {
+		port.Close()
+		return &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
+	}
+	params.BaudRate = uint32(baudrate)
+	params.ByteSize = 8
+	params.StopBits = ONESTOPBIT
+	params.Parity = NOPARITY
+	if err := SetCommState(port.Handle, &params); err != nil {
+		port.Close()
+		return &SerialPortError{code: ERROR_INVALID_SERIAL_PORT}
+	}
+	return nil
+}
+
 func OpenPort(portName string, useTIOCEXCL bool) (SerialPort, error) {
 	portName = "\\\\.\\" + portName