- duration can be specified for sendBreak

- default duration increased to 0.25s

4 files changed, 11 insertions, 11 deletions

diff --git a/pyserial/CHANGES.txt b/pyserial/CHANGES.txt
index 6152501..5163aa9 100644
--- a/pyserial/CHANGES.txt
+++ b/pyserial/CHANGES.txt
@@ -239,6 +239,7 @@ Version 2.3     xxx
 ---------------------------
 New Features:
 
-- iterator interface. "for line in Serial(...): ..." is now possible
+- iterator interface. ``for line in Serial(...): ...`` is now possible
   Sugested by Bernhard Bender
 
+- ``sendBreak()`` accepts a ``duration`` argument. Default duration increased.
diff --git a/pyserial/serial/serialjava.py b/pyserial/serial/serialjava.py
index 90b0896..c2421b0 100644
--- a/pyserial/serial/serialjava.py
+++ b/pyserial/serial/serialjava.py
@@ -9,7 +9,7 @@
 import javax.comm
 from serialutil import *
 
-VERSION = "$Revision: 1.8 $".split()[1]     #extract CVS version
+VERSION = "$Revision: 1.9 $".split()[1]     #extract CVS version
 
 
 def device(portnumber):
@@ -152,10 +152,10 @@ class Serial(SerialBase):
         if not self.sPort: raise portNotOpenError
         self._outstream.flush()
 
-    def sendBreak(self):
+    def sendBreak(self, duration=0.25):
         """Send break condition."""
         if not self.sPort: raise portNotOpenError
-        self.sPort.sendBreak()
+        self.sPort.sendBreak(duration*1000.0)
 
     def setRTS(self,on=1):
         """Set terminal status line: Request To Send"""
diff --git a/pyserial/serial/serialposix.py b/pyserial/serial/serialposix.py
index b057015..d3c0f8b 100644
--- a/pyserial/serial/serialposix.py
+++ b/pyserial/serial/serialposix.py
@@ -13,7 +13,7 @@
 import sys, os, fcntl, termios, struct, select, errno
 from serialutil import *
 
-VERSION = "$Revision: 1.28 $".split()[1]     #extract CVS version
+VERSION = "$Revision: 1.29 $".split()[1]     #extract CVS version
 
 #Do check the Python version as some constants have moved.
 if (sys.hexversion < 0x020100f0):
@@ -321,11 +321,11 @@ class Serial(SerialBase):
             raise portNotOpenError
         termios.tcflush(self.fd, TERMIOS.TCOFLUSH)
 
-    def sendBreak(self):
+    def sendBreak(self, duration=0.25):
         """Send break condition."""
         if self.fd is None:
             raise portNotOpenError
-        termios.tcsendbreak(self.fd, 0)
+        termios.tcsendbreak(self.fd, int(duration/0.25))
 
     def setRTS(self,on=1):
         """Set terminal status line: Request To Send"""
diff --git a/pyserial/serial/serialwin32.py b/pyserial/serial/serialwin32.py
index cda6205..a83ccfe 100644
--- a/pyserial/serial/serialwin32.py
+++ b/pyserial/serial/serialwin32.py
@@ -11,7 +11,7 @@ import win32event # We use events and the WaitFor[Single|Multiple]Objects functi
 import win32con   # constants.
 from serialutil import *
 
-VERSION = "$Revision: 1.31 $".split()[1]     #extract CVS version
+VERSION = "$Revision: 1.32 $".split()[1]     #extract CVS version
 
 #from winbase.h. these should realy be in win32con
 MS_CTS_ON  = 16
@@ -237,13 +237,12 @@ class Serial(SerialBase):
         if not self.hComPort: raise portNotOpenError
         win32file.PurgeComm(self.hComPort, win32file.PURGE_TXCLEAR | win32file.PURGE_TXABORT)
 
-    def sendBreak(self):
+    def sendBreak(self, duration=0.25):
         """Send break condition."""
         if not self.hComPort: raise portNotOpenError
         import time
         win32file.SetCommBreak(self.hComPort)
-        #TODO: how to set the correct duration??
-        time.sleep(0.020)
+        time.sleep(duration)
         win32file.ClearCommBreak(self.hComPort)
 
     def setRTS(self,level=1):