From 28efc5a0b63d338bd976306460d7f6324fc0d1fb Mon Sep 17 00:00:00 2001
From: daid <daid303@gmail.com>
Date: Thu, 22 Aug 2013 16:44:45 +0200
Subject: [PATCH] Try to implement the TCGETS2 patch for linux to workaround
 the pyserial problem for 250000 baud.

---
 Cura/util/machineCom.py | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/Cura/util/machineCom.py b/Cura/util/machineCom.py
index 045aed85..db9ed8c6 100644
--- a/Cura/util/machineCom.py
+++ b/Cura/util/machineCom.py
@@ -376,7 +376,7 @@ class MachineCom(object):
 					else:
 						baudrate = self._baudrateDetectList.pop(0)
 						try:
-							self._serial.baudrate = baudrate
+							self._setBaudrate(baudrate)
 							self._serial.timeout = 0.5
 							self._log("Trying baudrate: %d" % (baudrate))
 							self._baudrateDetectRetry = 5
@@ -440,7 +440,30 @@ class MachineCom(object):
 						if "rs" in line:
 							self._gcodePos = int(line.split()[1])
 		self._log("Connection closed, closing down monitor")
-	
+
+	def _setBaudrate(self, baudrate):
+		#For linux the pyserial implementation lacks TCGETS2 support. So do that ourselves
+		if sys.platform.startswith('linux'):
+			try:
+				self._serial.baudrate = baudrate
+			except:
+				try:
+					# set custom speed
+					import fcntl, array, termios
+					TCGETS2 = 0x802C542A
+					TCSETS2 = 0x402C542B
+					BOTHER = 0o010000
+					buf = array.array('i', [0] * 64)
+					fcntl.ioctl(self._serial.fd, TCGETS2, buf)
+					buf[2] &= ~termios.CBAUD
+					buf[2] |= BOTHER
+					buf[9] = buf[10] = baudrate
+					fcntl.ioctl(self._serial.fd, TCSETS2, buf)
+				except:
+					print getExceptionString()
+		else:
+			self._serial.baudrate = baudrate
+
 	def _log(self, message):
 		self._callback.mcLog(message)
 		try:
-- 
2.30.2