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-rw-r--r--serial/.cvsignore1
-rw-r--r--serial/__init__.py25
-rw-r--r--serial/serialcli.py247
-rw-r--r--serial/serialjava.py240
-rw-r--r--serial/serialposix.py492
-rw-r--r--serial/serialutil.py400
-rw-r--r--serial/serialwin32.py336
-rw-r--r--serial/sermsdos.py215
8 files changed, 1956 insertions, 0 deletions
diff --git a/serial/.cvsignore b/serial/.cvsignore
new file mode 100644
index 0000000..7e99e36
--- /dev/null
+++ b/serial/.cvsignore
@@ -0,0 +1 @@
+*.pyc \ No newline at end of file
diff --git a/serial/__init__.py b/serial/__init__.py
new file mode 100644
index 0000000..681ad5c
--- /dev/null
+++ b/serial/__init__.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+#portable serial port access with python
+#this is a wrapper module for different platform implementations
+#
+# (C)2001-2002 Chris Liechti <cliechti@gmx.net>
+# this is distributed under a free software license, see license.txt
+
+VERSION = '2.4'
+
+import sys
+
+if sys.platform == 'cli':
+ from serialcli import *
+else:
+ import os
+ #chose an implementation, depending on os
+ if os.name == 'nt': #sys.platform == 'win32':
+ from serialwin32 import *
+ elif os.name == 'posix':
+ from serialposix import *
+ elif os.name == 'java':
+ from serialjava import *
+ else:
+ raise Exception("Sorry: no implementation for your platform ('%s') available" % os.name)
+
diff --git a/serial/serialcli.py b/serial/serialcli.py
new file mode 100644
index 0000000..9864848
--- /dev/null
+++ b/serial/serialcli.py
@@ -0,0 +1,247 @@
+#! python
+# Python Serial Port Extension for Win32, Linux, BSD, Jython and .NET/Mono
+# serial driver for .NET/Mono (IronPython), .NET >= 2
+# see __init__.py
+#
+# (C) 2008 Chris Liechti <cliechti@gmx.net>
+# this is distributed under a free software license, see license.txt
+
+import clr
+import System
+import System.IO.Ports
+from serialutil import *
+
+def device(portnum):
+ """Turn a port number into a device name"""
+ return System.IO.Ports.SerialPort.GetPortNames()[portnum]
+
+# must invoke function with byte array, make a helper to convert strings
+# to byte arrays
+sab = System.Array[System.Byte]
+def as_byte_array(string):
+ return sab([ord(x) for x in string])
+
+class Serial(SerialBase):
+ """Serial port implemenation for .NET/Mono."""
+
+ BAUDRATES = (50,75,110,134,150,200,300,600,1200,1800,2400,4800,9600,
+ 19200,38400,57600,115200)
+
+ def open(self):
+ """Open port with current settings. This may throw a SerialException
+ if the port cannot be opened."""
+ if self._port is None:
+ raise SerialException("Port must be configured before it can be used.")
+ try:
+ self._port_handle = System.IO.Ports.SerialPort(self.portstr)
+ except Exception, msg:
+ self._port_handle = None
+ raise SerialException("could not open port %s: %s" % (self.portstr, msg))
+
+ self._reconfigurePort()
+ self._port_handle.Open()
+ self._isOpen = True
+ if not self._rtscts:
+ self.setRTS(True)
+ self.setDTR(True)
+ self.flushInput()
+ self.flushOutput()
+
+ def _reconfigurePort(self):
+ """Set communication parameters on opened port."""
+ if not self._port_handle:
+ raise SerialException("Can only operate on a valid port handle")
+
+ self.ReceivedBytesThreshold = 1
+
+ if self._timeout is None:
+ self._port_handle.ReadTimeout = System.IO.Ports.SerialPort.InfiniteTimeout
+ else:
+ self._port_handle.ReadTimeout = int(self._timeout*1000)
+
+ # if self._timeout != 0 and self._interCharTimeout is not None:
+ # timeouts = (int(self._interCharTimeout * 1000),) + timeouts[1:]
+
+ if self._writeTimeout is None:
+ self._port_handle.WriteTimeout = System.IO.Ports.SerialPort.InfiniteTimeout
+ else:
+ self._port_handle.WriteTimeout = int(self._writeTimeout*1000)
+
+
+ # Setup the connection info.
+ try:
+ self._port_handle.BaudRate = self._baudrate
+ except IOError, e:
+ # catch errors from illegal baudrate settings
+ raise ValueError(str(e))
+
+ if self._bytesize == FIVEBITS:
+ self._port_handle.DataBits = 5
+ elif self._bytesize == SIXBITS:
+ self._port_handle.DataBits = 6
+ elif self._bytesize == SEVENBITS:
+ self._port_handle.DataBits = 7
+ elif self._bytesize == EIGHTBITS:
+ self._port_handle.DataBits = 8
+ else:
+ raise ValueError("Unsupported number of data bits: %r" % self._bytesize)
+
+ if self._parity == PARITY_NONE:
+ self._port_handle.Parity = System.IO.Ports.Parity.None
+ elif self._parity == PARITY_EVEN:
+ self._port_handle.Parity = System.IO.Ports.Parity.Even
+ elif self._parity == PARITY_ODD:
+ self._port_handle.Parity = System.IO.Ports.Parity.Odd
+ elif self._parity == PARITY_MARK:
+ self._port_handle.Parity = System.IO.Ports.Parity.Mark
+ elif self._parity == PARITY_SPACE:
+ self._port_handle.Parity = System.IO.Ports.Parity.Space
+ else:
+ raise ValueError("Unsupported parity mode: %r" % self._parity)
+
+ if self._stopbits == STOPBITS_ONE:
+ self._port_handle.StopBits = System.IO.Ports.StopBits.One
+ elif self._stopbits == STOPBITS_TWO:
+ self._port_handle.StopBits = System.IO.Ports.StopBits.Two
+ else:
+ raise ValueError("Unsupported number of stop bits: %r" % self._stopbits)
+
+ if self._rtscts and self._xonxoff:
+ self._port_handle.Handshake = System.IO.Ports.Handshake.RequestToSendXOnXOff
+ elif self._rtscts:
+ self._port_handle.Handshake = System.IO.Ports.Handshake.RequestToSend
+ elif self._xonxoff:
+ self._port_handle.Handshake = System.IO.Ports.Handshake.XOnXOff
+ else:
+ self._port_handle.Handshake = System.IO.Ports.Handshake.None
+
+ #~ def __del__(self):
+ #~ self.close()
+
+ def close(self):
+ """Close port"""
+ if self._isOpen:
+ if self._port_handle:
+ try:
+ self._port_handle.Close()
+ except System.IO.Ports.InvalidOperationException:
+ # ignore errors. can happen for unplugged USB serial devices
+ pass
+ self._port_handle = None
+ self._isOpen = False
+
+ def makeDeviceName(self, port):
+ try:
+ return device(port)
+ except TypeError, e:
+ raise SerialException(str(e))
+
+ # - - - - - - - - - - - - - - - - - - - - - - - -
+
+ def inWaiting(self):
+ """Return the number of characters currently in the input buffer."""
+ if not self._port_handle: raise portNotOpenError
+ return self._port_handle.BytesToRead
+
+ def read(self, size=1):
+ """Read size bytes from the serial port. If a timeout is set it may
+ return less characters as requested. With no timeout it will block
+ until the requested number of bytes is read."""
+ if not self._port_handle: raise portNotOpenError
+ # must use single byte reads as this is the only way to read
+ # without applying encodings
+ data = []
+ while size:
+ try:
+ data.append(chr(self._port_handle.ReadByte()))
+ except System.TimeoutException, e:
+ break
+ else:
+ size -= 1
+ return ''.join(data)
+
+ def write(self, data):
+ """Output the given string over the serial port."""
+ if not self._port_handle: raise portNotOpenError
+ if not isinstance(data, str):
+ raise TypeError('expected str, got %s' % type(data))
+ try:
+ # must call overloaded method with byte array argument
+ # as this is the only one not applying encodings
+ self._port_handle.Write(as_byte_array(data), 0, len(data))
+ except System.TimeoutException, e:
+ raise writeTimeoutError
+
+ def flushInput(self):
+ """Clear input buffer, discarding all that is in the buffer."""
+ if not self._port_handle: raise portNotOpenError
+ self._port_handle.DiscardInBuffer()
+
+ def flushOutput(self):
+ """Clear output buffer, aborting the current output and
+ discarding all that is in the buffer."""
+ if not self._port_handle: raise portNotOpenError
+ self._port_handle.DiscardOutBuffer()
+
+ def sendBreak(self, duration=0.25):
+ """Send break condition. Timed, returns to idle state after given duration."""
+ if not self._port_handle: raise portNotOpenError
+ import time
+ self._port_handle.BreakState = True
+ time.sleep(duration)
+ self._port_handle.BreakState = False
+
+ def setBreak(self, level=True):
+ """Set break: Controls TXD. When active, to transmitting is possible."""
+ if not self._port_handle: raise portNotOpenError
+ self._port_handle.BreakState = bool(level)
+
+ def setRTS(self, level=True):
+ """Set terminal status line: Request To Send"""
+ if not self._port_handle: raise portNotOpenError
+ self._port_handle.RtsEnable = bool(level)
+
+ def setDTR(self, level=True):
+ """Set terminal status line: Data Terminal Ready"""
+ if not self._port_handle: raise portNotOpenError
+ self._port_handle.DtrEnable = bool(level)
+
+ def getCTS(self):
+ """Read terminal status line: Clear To Send"""
+ if not self._port_handle: raise portNotOpenError
+ return self._port_handle.CtsHolding
+
+ def getDSR(self):
+ """Read terminal status line: Data Set Ready"""
+ if not self._port_handle: raise portNotOpenError
+ return self._port_handle.DsrHolding
+
+ def getRI(self):
+ """Read terminal status line: Ring Indicator"""
+ if not self._port_handle: raise portNotOpenError
+ #~ return self._port_handle.XXX
+ return False #XXX an error would be better
+
+ def getCD(self):
+ """Read terminal status line: Carrier Detect"""
+ if not self._port_handle: raise portNotOpenError
+ return self._port_handle.CDHolding
+
+ # - - platform specific - - - -
+
+#Nur Testfunktion!!
+if __name__ == '__main__':
+ s = Serial(0)
+ print s
+
+ s = Serial()
+ print s
+
+
+ s.baudrate = 19200
+ s.databits = 7
+ s.close()
+ s.port = 0
+ s.open()
+ print s
+
diff --git a/serial/serialjava.py b/serial/serialjava.py
new file mode 100644
index 0000000..cca46dc
--- /dev/null
+++ b/serial/serialjava.py
@@ -0,0 +1,240 @@
+#!jython
+#
+# Python Serial Port Extension for Win32, Linux, BSD, Jython
+# module for serial IO for Jython and JavaComm
+# see __init__.py
+#
+# (C) 2002-2008 Chris Liechti <cliechti@gmx.net>
+# this is distributed under a free software license, see license.txt
+
+from serialutil import *
+
+def my_import(name):
+ mod = __import__(name)
+ components = name.split('.')
+ for comp in components[1:]:
+ mod = getattr(mod, comp)
+ return mod
+
+def detect_java_comm(names):
+ """try given list of modules and return that imports"""
+ for name in names:
+ try:
+ mod = my_import(name)
+ mod.SerialPort
+ return mod
+ except (ImportError, AttributeError):
+ pass
+ raise ImportError("No Java Communications API implementation found")
+
+# Java Communications API implementations
+# http://mho.republika.pl/java/comm/
+
+comm = detect_java_comm([
+ 'javax.comm', # Sun/IBM
+ 'gnu.io', # RXTX
+])
+
+
+def device(portnumber):
+ """Turn a port number into a device name"""
+ enum = comm.CommPortIdentifier.getPortIdentifiers()
+ ports = []
+ while enum.hasMoreElements():
+ el = enum.nextElement()
+ if el.getPortType() == comm.CommPortIdentifier.PORT_SERIAL:
+ ports.append(el)
+ return ports[portnumber].getName()
+
+class Serial(SerialBase):
+ """Serial port class, implemented with Java Communications API and
+ thus usable with jython and the appropriate java extension."""
+
+ def open(self):
+ """Open port with current settings. This may throw a SerialException
+ if the port cannot be opened."""
+ if self._port is None:
+ raise SerialException("Port must be configured before it can be used.")
+ if type(self._port) == type(''): #strings are taken directly
+ portId = comm.CommPortIdentifier.getPortIdentifier(self._port)
+ else:
+ portId = comm.CommPortIdentifier.getPortIdentifier(device(self._port)) #numbers are transformed to a comportid obj
+ try:
+ self.sPort = portId.open("python serial module", 10)
+ except Exception, msg:
+ self.sPort = None
+ raise SerialException("Could not open port: %s" % msg)
+ self._reconfigurePort()
+ self._instream = self.sPort.getInputStream()
+ self._outstream = self.sPort.getOutputStream()
+ self._isOpen = True
+
+ def _reconfigurePort(self):
+ """Set commuication parameters on opened port."""
+ if not self.sPort:
+ raise SerialException("Can only operate on a valid port handle")
+
+ self.sPort.enableReceiveTimeout(30)
+ if self._bytesize == FIVEBITS:
+ jdatabits = comm.SerialPort.DATABITS_5
+ elif self._bytesize == SIXBITS:
+ jdatabits = comm.SerialPort.DATABITS_6
+ elif self._bytesize == SEVENBITS:
+ jdatabits = comm.SerialPort.DATABITS_7
+ elif self._bytesize == EIGHTBITS:
+ jdatabits = comm.SerialPort.DATABITS_8
+ else:
+ raise ValueError("unsupported bytesize: %r" % self._bytesize)
+
+ if self._stopbits == STOPBITS_ONE:
+ jstopbits = comm.SerialPort.STOPBITS_1
+ elif stopbits == STOPBITS_ONE_HALVE:
+ self._jstopbits = comm.SerialPort.STOPBITS_1_5
+ elif self._stopbits == STOPBITS_TWO:
+ jstopbits = comm.SerialPort.STOPBITS_2
+ else:
+ raise ValueError("unsupported number of stopbits: %r" % self._stopbits)
+
+ if self._parity == PARITY_NONE:
+ jparity = comm.SerialPort.PARITY_NONE
+ elif self._parity == PARITY_EVEN:
+ jparity = comm.SerialPort.PARITY_EVEN
+ elif self._parity == PARITY_ODD:
+ jparity = comm.SerialPort.PARITY_ODD
+ elif self._parity == PARITY_MARK:
+ jparity = comm.SerialPort.PARITY_MARK
+ elif self._parity == PARITY_SPACE:
+ jparity = comm.SerialPort.PARITY_SPACE
+ else:
+ raise ValueError("unsupported parity type: %r" % self._parity)
+
+ jflowin = jflowout = 0
+ if self._rtscts:
+ jflowin |= comm.SerialPort.FLOWCONTROL_RTSCTS_IN
+ jflowout |= comm.SerialPort.FLOWCONTROL_RTSCTS_OUT
+ if self._xonxoff:
+ jflowin |= comm.SerialPort.FLOWCONTROL_XONXOFF_IN
+ jflowout |= comm.SerialPort.FLOWCONTROL_XONXOFF_OUT
+
+ self.sPort.setSerialPortParams(baudrate, jdatabits, jstopbits, jparity)
+ self.sPort.setFlowControlMode(jflowin | jflowout)
+
+ if self._timeout >= 0:
+ self.sPort.enableReceiveTimeout(self._timeout*1000)
+ else:
+ self.sPort.disableReceiveTimeout()
+
+ def close(self):
+ """Close port"""
+ if self._isOpen:
+ if self.sPort:
+ self._instream.close()
+ self._outstream.close()
+ self.sPort.close()
+ self.sPort = None
+ self._isOpen = False
+
+ def makeDeviceName(self, port):
+ return device(port)
+
+ # - - - - - - - - - - - - - - - - - - - - - - - -
+
+ def inWaiting(self):
+ """Return the number of characters currently in the input buffer."""
+ if not self.sPort: raise portNotOpenError
+ return self._instream.available()
+
+ def read(self, size=1):
+ """Read size bytes from the serial port. If a timeout is set it may
+ return less characters as requested. With no timeout it will block
+ until the requested number of bytes is read."""
+ if not self.sPort: raise portNotOpenError
+ read = ''
+ if size > 0:
+ while len(read) < size:
+ x = self._instream.read()
+ if x == -1:
+ if self.timeout >= 0:
+ break
+ else:
+ read = read + chr(x)
+ return read
+
+ def write(self, data):
+ """Output the given string over the serial port."""
+ if not self.sPort: raise portNotOpenError
+ self._outstream.write(data)
+
+ def flushInput(self):
+ """Clear input buffer, discarding all that is in the buffer."""
+ if not self.sPort: raise portNotOpenError
+ self._instream.skip(self._instream.available())
+
+ def flushOutput(self):
+ """Clear output buffer, aborting the current output and
+ discarding all that is in the buffer."""
+ if not self.sPort: raise portNotOpenError
+ self._outstream.flush()
+
+ def sendBreak(self, duration=0.25):
+ """Send break condition. Timed, returns to idle state after given duration."""
+ if not self.sPort: raise portNotOpenError
+ self.sPort.sendBreak(duration*1000.0)
+
+ def setBreak(self, level=1):
+ """Set break: Controls TXD. When active, to transmitting is possible."""
+ if self.fd is None: raise portNotOpenError
+ raise SerialException("The setBreak function is not implemented in java.")
+
+ def setRTS(self, level=1):
+ """Set terminal status line: Request To Send"""
+ if not self.sPort: raise portNotOpenError
+ self.sPort.setRTS(level)
+
+ def setDTR(self, level=1):
+ """Set terminal status line: Data Terminal Ready"""
+ if not self.sPort: raise portNotOpenError
+ self.sPort.setDTR(level)
+
+ def getCTS(self):
+ """Read terminal status line: Clear To Send"""
+ if not self.sPort: raise portNotOpenError
+ self.sPort.isCTS()
+
+ def getDSR(self):
+ """Read terminal status line: Data Set Ready"""
+ if not self.sPort: raise portNotOpenError
+ self.sPort.isDSR()
+
+ def getRI(self):
+ """Read terminal status line: Ring Indicator"""
+ if not self.sPort: raise portNotOpenError
+ self.sPort.isRI()
+
+ def getCD(self):
+ """Read terminal status line: Carrier Detect"""
+ if not self.sPort: raise portNotOpenError
+ self.sPort.isCD()
+
+
+
+if __name__ == '__main__':
+ s = Serial(0,
+ baudrate=19200, #baudrate
+ bytesize=EIGHTBITS, #number of databits
+ parity=PARITY_EVEN, #enable parity checking
+ stopbits=STOPBITS_ONE, #number of stopbits
+ timeout=3, #set a timeout value, None for waiting forever
+ xonxoff=0, #enable software flow control
+ rtscts=0, #enable RTS/CTS flow control
+ )
+ s.setRTS(1)
+ s.setDTR(1)
+ s.flushInput()
+ s.flushOutput()
+ s.write('hello')
+ print repr(s.read(5))
+ print s.inWaiting()
+ del s
+
+
diff --git a/serial/serialposix.py b/serial/serialposix.py
new file mode 100644
index 0000000..174e2f7
--- /dev/null
+++ b/serial/serialposix.py
@@ -0,0 +1,492 @@
+#!/usr/bin/env python
+# Python Serial Port Extension for Win32, Linux, BSD, Jython
+# module for serial IO for POSIX compatible systems, like Linux
+# see __init__.py
+#
+# (C) 2001-2008 Chris Liechti <cliechti@gmx.net>
+# this is distributed under a free software license, see license.txt
+#
+# parts based on code from Grant B. Edwards <grante@visi.com>:
+# ftp://ftp.visi.com/users/grante/python/PosixSerial.py
+# references: http://www.easysw.com/~mike/serial/serial.html
+
+import sys, os, fcntl, termios, struct, select, errno
+from serialutil import *
+
+#Do check the Python version as some constants have moved.
+if (sys.hexversion < 0x020100f0):
+ import TERMIOS
+else:
+ TERMIOS = termios
+
+if (sys.hexversion < 0x020200f0):
+ import FCNTL
+else:
+ FCNTL = fcntl
+
+#try to detect the os so that a device can be selected...
+plat = sys.platform.lower()
+
+if plat[:5] == 'linux': #Linux (confirmed)
+ def device(port):
+ return '/dev/ttyS%d' % port
+
+elif plat == 'cygwin': #cywin/win32 (confirmed)
+ def device(port):
+ return '/dev/com%d' % (port + 1)
+
+elif plat == 'openbsd3': #BSD (confirmed)
+ def device(port):
+ return '/dev/ttyp%d' % port
+
+elif plat[:3] == 'bsd' or \
+ plat[:7] == 'freebsd' or \
+ plat[:7] == 'openbsd' or \
+ plat[:6] == 'darwin': #BSD (confirmed for freebsd4: cuaa%d)
+ def device(port):
+ return '/dev/cuad%d' % port
+
+elif plat[:6] == 'netbsd': #NetBSD 1.6 testing by Erk
+ def device(port):
+ return '/dev/dty%02d' % port
+
+elif plat[:4] == 'irix': #IRIX (partialy tested)
+ def device(port):
+ return '/dev/ttyf%d' % (port+1) #XXX different device names depending on flow control
+
+elif plat[:2] == 'hp': #HP-UX (not tested)
+ def device(port):
+ return '/dev/tty%dp0' % (port+1)
+
+elif plat[:5] == 'sunos': #Solaris/SunOS (confirmed)
+ def device(port):
+ return '/dev/tty%c' % (ord('a')+port)
+
+elif plat[:3] == 'aix': #aix
+ def device(port):
+ return '/dev/tty%d' % (port)
+
+else:
+ #platform detection has failed...
+ print """don't know how to number ttys on this system.
+! Use an explicit path (eg /dev/ttyS1) or send this information to
+! the author of this module:
+
+sys.platform = %r
+os.name = %r
+serialposix.py version = %s
+
+also add the device name of the serial port and where the
+counting starts for the first serial port.
+e.g. 'first serial port: /dev/ttyS0'
+and with a bit luck you can get this module running...
+""" % (sys.platform, os.name, VERSION)
+ #no exception, just continue with a brave attempt to build a device name
+ #even if the device name is not correct for the platform it has chances
+ #to work using a string with the real device name as port paramter.
+ def device(portum):
+ return '/dev/ttyS%d' % portnum
+ #~ raise Exception, "this module does not run on this platform, sorry."
+
+#whats up with "aix", "beos", ....
+#they should work, just need to know the device names.
+
+
+#load some constants for later use.
+#try to use values from TERMIOS, use defaults from linux otherwise
+TIOCMGET = hasattr(TERMIOS, 'TIOCMGET') and TERMIOS.TIOCMGET or 0x5415
+TIOCMBIS = hasattr(TERMIOS, 'TIOCMBIS') and TERMIOS.TIOCMBIS or 0x5416
+TIOCMBIC = hasattr(TERMIOS, 'TIOCMBIC') and TERMIOS.TIOCMBIC or 0x5417
+TIOCMSET = hasattr(TERMIOS, 'TIOCMSET') and TERMIOS.TIOCMSET or 0x5418
+
+#TIOCM_LE = hasattr(TERMIOS, 'TIOCM_LE') and TERMIOS.TIOCM_LE or 0x001
+TIOCM_DTR = hasattr(TERMIOS, 'TIOCM_DTR') and TERMIOS.TIOCM_DTR or 0x002
+TIOCM_RTS = hasattr(TERMIOS, 'TIOCM_RTS') and TERMIOS.TIOCM_RTS or 0x004
+#TIOCM_ST = hasattr(TERMIOS, 'TIOCM_ST') and TERMIOS.TIOCM_ST or 0x008
+#TIOCM_SR = hasattr(TERMIOS, 'TIOCM_SR') and TERMIOS.TIOCM_SR or 0x010
+
+TIOCM_CTS = hasattr(TERMIOS, 'TIOCM_CTS') and TERMIOS.TIOCM_CTS or 0x020
+TIOCM_CAR = hasattr(TERMIOS, 'TIOCM_CAR') and TERMIOS.TIOCM_CAR or 0x040
+TIOCM_RNG = hasattr(TERMIOS, 'TIOCM_RNG') and TERMIOS.TIOCM_RNG or 0x080
+TIOCM_DSR = hasattr(TERMIOS, 'TIOCM_DSR') and TERMIOS.TIOCM_DSR or 0x100
+TIOCM_CD = hasattr(TERMIOS, 'TIOCM_CD') and TERMIOS.TIOCM_CD or TIOCM_CAR
+TIOCM_RI = hasattr(TERMIOS, 'TIOCM_RI') and TERMIOS.TIOCM_RI or TIOCM_RNG
+#TIOCM_OUT1 = hasattr(TERMIOS, 'TIOCM_OUT1') and TERMIOS.TIOCM_OUT1 or 0x2000
+#TIOCM_OUT2 = hasattr(TERMIOS, 'TIOCM_OUT2') and TERMIOS.TIOCM_OUT2 or 0x4000
+TIOCINQ = hasattr(TERMIOS, 'FIONREAD') and TERMIOS.FIONREAD or 0x541B
+
+TIOCM_zero_str = struct.pack('I', 0)
+TIOCM_RTS_str = struct.pack('I', TIOCM_RTS)
+TIOCM_DTR_str = struct.pack('I', TIOCM_DTR)
+
+TIOCSBRK = hasattr(TERMIOS, 'TIOCSBRK') and TERMIOS.TIOCSBRK or 0x5427
+TIOCCBRK = hasattr(TERMIOS, 'TIOCCBRK') and TERMIOS.TIOCCBRK or 0x5428
+
+ASYNC_SPD_MASK = 0x1030
+ASYNC_SPD_CUST = 0x0030
+
+baudrate_constants = {
+ 0: 0000000, # hang up
+ 50: 0000001,
+ 75: 0000002,
+ 110: 0000003,
+ 134: 0000004,
+ 150: 0000005,
+ 200: 0000006,
+ 300: 0000007,
+ 600: 0000010,
+ 1200: 0000011,
+ 1800: 0000012,
+ 2400: 0000013,
+ 4800: 0000014,
+ 9600: 0000015,
+ 19200: 0000016,
+ 38400: 0000017,
+ 57600: 0010001,
+ 115200: 0010002,
+ 230400: 0010003,
+ 460800: 0010004,
+ 500000: 0010005,
+ 576000: 0010006,
+ 921600: 0010007,
+ 1000000: 0010010,
+ 1152000: 0010011,
+ 1500000: 0010012,
+ 2000000: 0010013,
+ 2500000: 0010014,
+ 3000000: 0010015,
+ 3500000: 0010016,
+ 4000000: 0010017
+}
+
+
+class Serial(SerialBase):
+ """Serial port class POSIX implementation. Serial port configuration is
+ done with termios and fcntl. Runs on Linux and many other Un*x like
+ systems."""
+
+ def open(self):
+ """Open port with current settings. This may throw a SerialException
+ if the port cannot be opened."""
+ if self._port is None:
+ raise SerialException("Port must be configured before it can be used.")
+ self.fd = None
+ #open
+ try:
+ self.fd = os.open(self.portstr, os.O_RDWR|os.O_NOCTTY|os.O_NONBLOCK)
+ except Exception, msg:
+ self.fd = None
+ raise SerialException("could not open port %s: %s" % (self._port, msg))
+ #~ fcntl.fcntl(self.fd, FCNTL.F_SETFL, 0) #set blocking
+
+ try:
+ self._reconfigurePort()
+ except:
+ os.close(self.fd)
+ self.fd = None
+ else:
+ self._isOpen = True
+ #~ self.flushInput()
+
+
+ def _reconfigurePort(self):
+ """Set communication parameters on opened port."""
+ if self.fd is None:
+ raise SerialException("Can only operate on a valid port handle")
+ custom_baud = None
+
+ vmin = vtime = 0 #timeout is done via select
+ if self._interCharTimeout is not None:
+ vmin = 1
+ vtime = int(self._interCharTimeout * 10)
+ try:
+ iflag, oflag, cflag, lflag, ispeed, ospeed, cc = termios.tcgetattr(self.fd)
+ except termios.error, msg: #if a port is nonexistent but has a /dev file, it'll fail here
+ raise SerialException("Could not configure port: %s" % msg)
+ #set up raw mode / no echo / binary
+ cflag |= (TERMIOS.CLOCAL|TERMIOS.CREAD)
+ lflag &= ~(TERMIOS.ICANON|TERMIOS.ECHO|TERMIOS.ECHOE|TERMIOS.ECHOK|TERMIOS.ECHONL|
+ TERMIOS.ISIG|TERMIOS.IEXTEN) #|TERMIOS.ECHOPRT
+ for flag in ('ECHOCTL', 'ECHOKE'): #netbsd workaround for Erk
+ if hasattr(TERMIOS, flag):
+ lflag &= ~getattr(TERMIOS, flag)
+
+ oflag &= ~(TERMIOS.OPOST)
+ iflag &= ~(TERMIOS.INLCR|TERMIOS.IGNCR|TERMIOS.ICRNL|TERMIOS.IGNBRK)
+ if hasattr(TERMIOS, 'IUCLC'):
+ iflag &= ~TERMIOS.IUCLC
+ if hasattr(TERMIOS, 'PARMRK'):
+ iflag &= ~TERMIOS.PARMRK
+
+ #setup baudrate
+ try:
+ ispeed = ospeed = getattr(TERMIOS,'B%s' % (self._baudrate))
+ except AttributeError:
+ try:
+ ispeed = ospeed = baudrate_constants[self._baudrate]
+ except KeyError:
+ #~ raise ValueError('Invalid baud rate: %r' % self._baudrate)
+ # may need custom baud rate, it isnt in our list.
+ ispeed = ospeed = getattr(TERMIOS, 'B38400')
+ custom_baud = int(self._baudrate) # store for later
+
+ #setup char len
+ cflag &= ~TERMIOS.CSIZE
+ if self._bytesize == 8:
+ cflag |= TERMIOS.CS8
+ elif self._bytesize == 7:
+ cflag |= TERMIOS.CS7
+ elif self._bytesize == 6:
+ cflag |= TERMIOS.CS6
+ elif self._bytesize == 5:
+ cflag |= TERMIOS.CS5
+ else:
+ raise ValueError('Invalid char len: %r' % self._bytesize)
+ #setup stopbits
+ if self._stopbits == STOPBITS_ONE:
+ cflag &= ~(TERMIOS.CSTOPB)
+ elif self._stopbits == STOPBITS_TWO:
+ cflag |= (TERMIOS.CSTOPB)
+ else:
+ raise ValueError('Invalid stopit specification: %r' % self._stopbits)
+ #setup parity
+ iflag &= ~(TERMIOS.INPCK|TERMIOS.ISTRIP)
+ if self._parity == PARITY_NONE:
+ cflag &= ~(TERMIOS.PARENB|TERMIOS.PARODD)
+ elif self._parity == PARITY_EVEN:
+ cflag &= ~(TERMIOS.PARODD)
+ cflag |= (TERMIOS.PARENB)
+ elif self._parity == PARITY_ODD:
+ cflag |= (TERMIOS.PARENB|TERMIOS.PARODD)
+ else:
+ raise ValueError('Invalid parity: %r' % self._parity)
+ #setup flow control
+ #xonxoff
+ if hasattr(TERMIOS, 'IXANY'):
+ if self._xonxoff:
+ iflag |= (TERMIOS.IXON|TERMIOS.IXOFF) #|TERMIOS.IXANY)
+ else:
+ iflag &= ~(TERMIOS.IXON|TERMIOS.IXOFF|TERMIOS.IXANY)
+ else:
+ if self._xonxoff:
+ iflag |= (TERMIOS.IXON|TERMIOS.IXOFF)
+ else:
+ iflag &= ~(TERMIOS.IXON|TERMIOS.IXOFF)
+ #rtscts
+ if hasattr(TERMIOS, 'CRTSCTS'):
+ if self._rtscts:
+ cflag |= (TERMIOS.CRTSCTS)
+ else:
+ cflag &= ~(TERMIOS.CRTSCTS)
+ elif hasattr(TERMIOS, 'CNEW_RTSCTS'): #try it with alternate constant name
+ if self._rtscts:
+ cflag |= (TERMIOS.CNEW_RTSCTS)
+ else:
+ cflag &= ~(TERMIOS.CNEW_RTSCTS)
+ #XXX should there be a warning if setting up rtscts (and xonxoff etc) fails??
+
+ #buffer
+ #vmin "minimal number of characters to be read. = for non blocking"
+ if vmin < 0 or vmin > 255:
+ raise ValueError('Invalid vmin: %r ' % vmin)
+ cc[TERMIOS.VMIN] = vmin
+ #vtime
+ if vtime < 0 or vtime > 255:
+ raise ValueError('Invalid vtime: %r' % vtime)
+ cc[TERMIOS.VTIME] = vtime
+ #activate settings
+ termios.tcsetattr(self.fd, TERMIOS.TCSANOW, [iflag, oflag, cflag, lflag, ispeed, ospeed, cc])
+
+ # apply custom baud rate, if any
+ if custom_baud is not None:
+ import array
+ buf = array.array('i', [0] * 32)
+
+ # get serial_struct
+ FCNTL.ioctl(self.fd, TERMIOS.TIOCGSERIAL, buf)
+
+ # set custom divisor
+ buf[6] = buf[7] / custom_baud
+
+ # update flags
+ buf[4] &= ~ASYNC_SPD_MASK
+ buf[4] |= ASYNC_SPD_CUST
+
+ # set serial_struct
+ try:
+ res = FCNTL.ioctl(self.fd, TERMIOS.TIOCSSERIAL, buf)
+ except IOError:
+ raise ValueError('Failed to set custom baud rate: %r' % self._baudrate)
+
+ def close(self):
+ """Close port"""
+ if self._isOpen:
+ if self.fd is not None:
+ os.close(self.fd)
+ self.fd = None
+ self._isOpen = False
+
+ def makeDeviceName(self, port):
+ return device(port)
+
+ # - - - - - - - - - - - - - - - - - - - - - - - -
+
+ def inWaiting(self):
+ """Return the number of characters currently in the input buffer."""
+ #~ s = fcntl.ioctl(self.fd, TERMIOS.FIONREAD, TIOCM_zero_str)
+ s = fcntl.ioctl(self.fd, TIOCINQ, TIOCM_zero_str)
+ return struct.unpack('I',s)[0]
+
+ def read(self, size=1):
+ """Read size bytes from the serial port. If a timeout is set it may
+ return less characters as requested. With no timeout it will block
+ until the requested number of bytes is read."""
+ if self.fd is None: raise portNotOpenError
+ read = ''
+ inp = None
+ if size > 0:
+ while len(read) < size:
+ #print "\tread(): size",size, "have", len(read) #debug
+ ready,_,_ = select.select([self.fd],[],[], self._timeout)
+ if not ready:
+ break #timeout
+ buf = os.read(self.fd, size-len(read))
+ read = read + buf
+ if (self._timeout >= 0 or self._interCharTimeout > 0) and not buf:
+ break #early abort on timeout
+ return read
+
+ def write(self, data):
+ """Output the given string over the serial port."""
+ if self.fd is None: raise portNotOpenError
+ if not isinstance(data, str):
+ raise TypeError('expected str, got %s' % type(data))
+ t = len(data)
+ d = data
+ while t > 0:
+ try:
+ if self._writeTimeout is not None and self._writeTimeout > 0:
+ _,ready,_ = select.select([],[self.fd],[], self._writeTimeout)
+ if not ready:
+ raise writeTimeoutError
+ n = os.write(self.fd, d)
+ if self._writeTimeout is not None and self._writeTimeout > 0:
+ _,ready,_ = select.select([],[self.fd],[], self._writeTimeout)
+ if not ready:
+ raise writeTimeoutError
+ d = d[n:]
+ t = t - n
+ except OSError,v:
+ if v.errno != errno.EAGAIN:
+ raise
+
+ def flush(self):
+ """Flush of file like objects. In this case, wait until all data
+ is written."""
+ self.drainOutput()
+
+ def flushInput(self):
+ """Clear input buffer, discarding all that is in the buffer."""
+ if self.fd is None:
+ raise portNotOpenError
+ termios.tcflush(self.fd, TERMIOS.TCIFLUSH)
+
+ def flushOutput(self):
+ """Clear output buffer, aborting the current output and
+ discarding all that is in the buffer."""
+ if self.fd is None:
+ raise portNotOpenError
+ termios.tcflush(self.fd, TERMIOS.TCOFLUSH)
+
+ def sendBreak(self, duration=0.25):
+ """Send break condition. Timed, returns to idle state after given duration."""
+ if self.fd is None:
+ raise portNotOpenError
+ termios.tcsendbreak(self.fd, int(duration/0.25))
+
+ def setBreak(self, level=1):
+ """Set break: Controls TXD. When active, to transmitting is possible."""
+ if self.fd is None: raise portNotOpenError
+ if level:
+ fcntl.ioctl(self.fd, TIOCSBRK)
+ else:
+ fcntl.ioctl(self.fd, TIOCCBRK)
+
+ def setRTS(self, level=1):
+ """Set terminal status line: Request To Send"""
+ if self.fd is None: raise portNotOpenError
+ if level:
+ fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_RTS_str)
+ else:
+ fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_RTS_str)
+
+ def setDTR(self, level=1):
+ """Set terminal status line: Data Terminal Ready"""
+ if self.fd is None: raise portNotOpenError
+ if level:
+ fcntl.ioctl(self.fd, TIOCMBIS, TIOCM_DTR_str)
+ else:
+ fcntl.ioctl(self.fd, TIOCMBIC, TIOCM_DTR_str)
+
+ def getCTS(self):
+ """Read terminal status line: Clear To Send"""
+ if self.fd is None: raise portNotOpenError
+ s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+ return struct.unpack('I',s)[0] & TIOCM_CTS != 0
+
+ def getDSR(self):
+ """Read terminal status line: Data Set Ready"""
+ if self.fd is None: raise portNotOpenError
+ s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+ return struct.unpack('I',s)[0] & TIOCM_DSR != 0
+
+ def getRI(self):
+ """Read terminal status line: Ring Indicator"""
+ if self.fd is None: raise portNotOpenError
+ s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+ return struct.unpack('I',s)[0] & TIOCM_RI != 0
+
+ def getCD(self):
+ """Read terminal status line: Carrier Detect"""
+ if self.fd is None: raise portNotOpenError
+ s = fcntl.ioctl(self.fd, TIOCMGET, TIOCM_zero_str)
+ return struct.unpack('I',s)[0] & TIOCM_CD != 0
+
+ # - - platform specific - - - -
+
+ def drainOutput(self):
+ """internal - not portable!"""
+ if self.fd is None: raise portNotOpenError
+ termios.tcdrain(self.fd)
+
+ def nonblocking(self):
+ """internal - not portable!"""
+ if self.fd is None:
+ raise portNotOpenError
+ fcntl.fcntl(self.fd, FCNTL.F_SETFL, FCNTL.O_NONBLOCK)
+
+ def fileno(self):
+ """For easier of the serial port instance with select.
+ WARNING: this function is not portable to different platforms!"""
+ if self.fd is None: raise portNotOpenError
+ return self.fd
+
+if __name__ == '__main__':
+ s = Serial(0,
+ baudrate=19200, #baudrate
+ bytesize=EIGHTBITS, #number of databits
+ parity=PARITY_EVEN, #enable parity checking
+ stopbits=STOPBITS_ONE, #number of stopbits
+ timeout=3, #set a timeout value, None for waiting forever
+ xonxoff=0, #enable software flow control
+ rtscts=0, #enable RTS/CTS flow control
+ )
+ s.setRTS(1)
+ s.setDTR(1)
+ s.flushInput()
+ s.flushOutput()
+ s.write('hello')
+ print repr(s.read(5))
+ print s.inWaiting()
+ del s
+
diff --git a/serial/serialutil.py b/serial/serialutil.py
new file mode 100644
index 0000000..fd466f2
--- /dev/null
+++ b/serial/serialutil.py
@@ -0,0 +1,400 @@
+#! python
+# Python Serial Port Extension for Win32, Linux, BSD, Jython
+# see __init__.py
+#
+# (C) 2001-2008 Chris Liechti <cliechti@gmx.net>
+# this is distributed under a free software license, see license.txt
+
+PARITY_NONE, PARITY_EVEN, PARITY_ODD, PARITY_MARK, PARITY_SPACE = 'N', 'E', 'O', 'M', 'S'
+STOPBITS_ONE, STOPBITS_TWO = (1, 2)
+FIVEBITS, SIXBITS, SEVENBITS, EIGHTBITS = (5,6,7,8)
+
+PARITY_NAMES = {
+ PARITY_NONE: 'None',
+ PARITY_EVEN: 'Even',
+ PARITY_ODD: 'Odd',
+ PARITY_MARK: 'Mark',
+ PARITY_SPACE:'Space',
+}
+
+XON = chr(17)
+XOFF = chr(19)
+
+#Python < 2.2.3 compatibility
+try:
+ True
+except:
+ True = 1
+ False = not True
+
+class SerialException(Exception):
+ """Base class for serial port related exceptions."""
+
+portNotOpenError = SerialException('Port not open')
+
+class SerialTimeoutException(SerialException):
+ """Write timeouts give an exception"""
+
+writeTimeoutError = SerialTimeoutException("Write timeout")
+
+class FileLike(object):
+ """An abstract file like class.
+
+ This class implements readline and readlines based on read and
+ writelines based on write.
+ This class is used to provide the above functions for to Serial
+ port objects.
+
+ Note that when the serial port was opened with _NO_ timeout that
+ readline blocks until it sees a newline (or the specified size is
+ reached) and that readlines would never return and therefore
+ refuses to work (it raises an exception in this case)!
+ """
+
+ def read(self, size): raise NotImplementedError
+ def write(self, s): raise NotImplementedError
+
+ def readline(self, size=None, eol='\n'):
+ """read a line which is terminated with end-of-line (eol) character
+ ('\n' by default) or until timeout"""
+ line = ''
+ while 1:
+ c = self.read(1)
+ if c:
+ line += c #not very efficient but lines are usually not that long
+ if c == eol:
+ break
+ if size is not None and len(line) >= size:
+ break
+ else:
+ break
+ return line
+
+ def readlines(self, sizehint=None, eol='\n'):
+ """read a list of lines, until timeout
+ sizehint is ignored"""
+ if self.timeout is None:
+ raise ValueError, "Serial port MUST have enabled timeout for this function!"
+ lines = []
+ while 1:
+ line = self.readline(eol=eol)
+ if line:
+ lines.append(line)
+ if line[-1] != eol: #was the line received with a timeout?
+ break
+ else:
+ break
+ return lines
+
+ def xreadlines(self, sizehint=None):
+ """just call readlines - here for compatibility"""
+ return self.readlines()
+
+ def writelines(self, sequence):
+ for line in sequence:
+ self.write(line)
+
+ def flush(self):
+ """flush of file like objects"""
+ pass
+
+ # iterator for e.g. "for line in Serial(0): ..." usage
+ def next(self):
+ line = self.readline()
+ if not line: raise StopIteration
+ return line
+
+ def __iter__(self):
+ return self
+
+
+class SerialBase(FileLike):
+ """Serial port base class. Provides __init__ function and properties to
+ get/set port settings."""
+
+ #default values, may be overriden in subclasses that do not support all values
+ BAUDRATES = (50,75,110,134,150,200,300,600,1200,1800,2400,4800,9600,
+ 19200,38400,57600,115200,230400,460800,500000,576000,921600,
+ 1000000,1152000,1500000,2000000,2500000,3000000,3500000,4000000)
+ BYTESIZES = (FIVEBITS, SIXBITS, SEVENBITS, EIGHTBITS)
+ PARITIES = (PARITY_NONE, PARITY_EVEN, PARITY_ODD)
+ STOPBITS = (STOPBITS_ONE, STOPBITS_TWO)
+
+ def __init__(self,
+ port = None, #number of device, numbering starts at
+ #zero. if everything fails, the user
+ #can specify a device string, note
+ #that this isn't portable anymore
+ #port will be opened if one is specified
+ baudrate=9600, #baudrate
+ bytesize=EIGHTBITS, #number of databits
+ parity=PARITY_NONE, #enable parity checking
+ stopbits=STOPBITS_ONE, #number of stopbits
+ timeout=None, #set a timeout value, None to wait forever
+ xonxoff=0, #enable software flow control
+ rtscts=0, #enable RTS/CTS flow control
+ writeTimeout=None, #set a timeout for writes
+ dsrdtr=None, #None: use rtscts setting, dsrdtr override if true or false
+ interCharTimeout=None #Inter-character timeout, None to disable
+ ):
+ """Initialize comm port object. If a port is given, then the port will be
+ opened immediately. Otherwise a Serial port object in closed state
+ is returned."""
+
+ self._isOpen = False
+ self._port = None #correct value is assigned below trough properties
+ self._baudrate = None #correct value is assigned below trough properties
+ self._bytesize = None #correct value is assigned below trough properties
+ self._parity = None #correct value is assigned below trough properties
+ self._stopbits = None #correct value is assigned below trough properties
+ self._timeout = None #correct value is assigned below trough properties
+ self._writeTimeout = None #correct value is assigned below trough properties
+ self._xonxoff = None #correct value is assigned below trough properties
+ self._rtscts = None #correct value is assigned below trough properties
+ self._dsrdtr = None #correct value is assigned below trough properties
+ self._interCharTimeout = None #correct value is assigned below trough properties
+
+ #assign values using get/set methods using the properties feature
+ self.port = port
+ self.baudrate = baudrate
+ self.bytesize = bytesize
+ self.parity = parity
+ self.stopbits = stopbits
+ self.timeout = timeout
+ self.writeTimeout = writeTimeout
+ self.xonxoff = xonxoff
+ self.rtscts = rtscts
+ self.dsrdtr = dsrdtr
+ self.interCharTimeout = interCharTimeout
+
+ if port is not None:
+ self.open()
+
+ def isOpen(self):
+ """Check if the port is opened."""
+ return self._isOpen
+
+ # - - - - - - - - - - - - - - - - - - - - - - - -
+
+ #TODO: these are not realy needed as the is the BAUDRATES etc attribute...
+ #maybe i remove them before the final release...
+
+ def getSupportedBaudrates(self):
+ return [(str(b), b) for b in self.BAUDRATES]
+
+ def getSupportedByteSizes(self):
+ return [(str(b), b) for b in self.BYTESIZES]
+
+ def getSupportedStopbits(self):
+ return [(str(b), b) for b in self.STOPBITS]
+
+ def getSupportedParities(self):
+ return [(PARITY_NAMES[b], b) for b in self.PARITIES]
+
+ # - - - - - - - - - - - - - - - - - - - - - - - -
+
+ def setPort(self, port):
+ """Change the port. The attribute portstr is set to a string that
+ contains the name of the port."""
+
+ was_open = self._isOpen
+ if was_open: self.close()
+ if port is not None:
+ if type(port) in [type(''), type(u'')]: #strings are taken directly
+ self.portstr = port
+ else:
+ self.portstr = self.makeDeviceName(port)
+ else:
+ self.portstr = None
+ self._port = port
+ if was_open: self.open()
+
+ def getPort(self):
+ """Get the current port setting. The value that was passed on init or using
+ setPort() is passed back. See also the attribute portstr which contains
+ the name of the port as a string."""
+ return self._port
+
+ port = property(getPort, setPort, doc="Port setting")
+
+
+ def setBaudrate(self, baudrate):
+ """Change baudrate. It raises a ValueError if the port is open and the
+ baudrate is not possible. If the port is closed, then tha value is
+ accepted and the exception is raised when the port is opened."""
+ #~ if baudrate not in self.BAUDRATES: raise ValueError("Not a valid baudrate: %r" % baudrate)
+ try:
+ self._baudrate = int(baudrate)
+ except TypeError:
+ raise ValueError("Not a valid baudrate: %r" % (baudrate,))
+ else:
+ if self._isOpen: self._reconfigurePort()
+
+ def getBaudrate(self):
+ """Get the current baudrate setting."""
+ return self._baudrate
+
+ baudrate = property(getBaudrate, setBaudrate, doc="Baudrate setting")
+
+
+ def setByteSize(self, bytesize):
+ """Change byte size."""
+ if bytesize not in self.BYTESIZES: raise ValueError("Not a valid byte size: %r" % (bytesize,))
+ self._bytesize = bytesize
+ if self._isOpen: self._reconfigurePort()
+
+ def getByteSize(self):
+ """Get the current byte size setting."""
+ return self._bytesize
+
+ bytesize = property(getByteSize, setByteSize, doc="Byte size setting")
+
+
+ def setParity(self, parity):
+ """Change parity setting."""
+ if parity not in self.PARITIES: raise ValueError("Not a valid parity: %r" % (parity,))
+ self._parity = parity
+ if self._isOpen: self._reconfigurePort()
+
+ def getParity(self):
+ """Get the current parity setting."""
+ return self._parity
+
+ parity = property(getParity, setParity, doc="Parity setting")
+
+
+ def setStopbits(self, stopbits):
+ """Change stopbits size."""
+ if stopbits not in self.STOPBITS: raise ValueError("Not a valid stopbit size: %r" % (stopbits,))
+ self._stopbits = stopbits
+ if self._isOpen: self._reconfigurePort()
+
+ def getStopbits(self):
+ """Get the current stopbits setting."""
+ return self._stopbits
+
+ stopbits = property(getStopbits, setStopbits, doc="Stopbits setting")
+
+
+ def setTimeout(self, timeout):
+ """Change timeout setting."""
+ if timeout is not None:
+ if timeout < 0: raise ValueError("Not a valid timeout: %r" % (timeout,))
+ try:
+ timeout + 1 #test if it's a number, will throw a TypeError if not...
+ except TypeError:
+ raise ValueError("Not a valid timeout: %r" % (timeout,))
+
+ self._timeout = timeout
+ if self._isOpen: self._reconfigurePort()
+
+ def getTimeout(self):
+ """Get the current timeout setting."""
+ return self._timeout
+
+ timeout = property(getTimeout, setTimeout, doc="Timeout setting for read()")
+
+
+ def setWriteTimeout(self, timeout):
+ """Change timeout setting."""
+ if timeout is not None:
+ if timeout < 0: raise ValueError("Not a valid timeout: %r" % (timeout,))
+ try:
+ timeout + 1 #test if it's a number, will throw a TypeError if not...
+ except TypeError:
+ raise ValueError("Not a valid timeout: %r" % timeout)
+
+ self._writeTimeout = timeout
+ if self._isOpen: self._reconfigurePort()
+
+ def getWriteTimeout(self):
+ """Get the current timeout setting."""
+ return self._writeTimeout
+
+ writeTimeout = property(getWriteTimeout, setWriteTimeout, doc="Timeout setting for write()")
+
+
+ def setXonXoff(self, xonxoff):
+ """Change XonXoff setting."""
+ self._xonxoff = xonxoff
+ if self._isOpen: self._reconfigurePort()
+
+ def getXonXoff(self):
+ """Get the current XonXoff setting."""
+ return self._xonxoff
+
+ xonxoff = property(getXonXoff, setXonXoff, doc="Xon/Xoff setting")
+
+ def setRtsCts(self, rtscts):
+ """Change RtsCts flow control setting."""
+ self._rtscts = rtscts
+ if self._isOpen: self._reconfigurePort()
+
+ def getRtsCts(self):
+ """Get the current RtsCts flow control setting."""
+ return self._rtscts
+
+ rtscts = property(getRtsCts, setRtsCts, doc="RTS/CTS flow control setting")
+
+ def setDsrDtr(self, dsrdtr=None):
+ """Change DsrDtr flow control setting."""
+ if dsrdtr is None:
+ #if not set, keep backwards compatibility and follow rtscts setting
+ self._dsrdtr = self._rtscts
+ else:
+ #if defined independently, follow its value
+ self._dsrdtr = dsrdtr
+ if self._isOpen: self._reconfigurePort()
+
+ def getDsrDtr(self):
+ """Get the current DsrDtr flow control setting."""
+ return self._dsrdtr
+
+ dsrdtr = property(getDsrDtr, setDsrDtr, "DSR/DTR flow control setting")
+
+ def setInterCharTimeout(self, interCharTimeout):
+ """Change inter-character timeout setting."""
+ if interCharTimeout is not None:
+ if interCharTimeout < 0: raise ValueError("Not a valid timeout: %r" % interCharTimeout)
+ try:
+ interCharTimeout + 1 #test if it's a number, will throw a TypeError if not...
+ except TypeError:
+ raise ValueError("Not a valid timeout: %r" % interCharTimeout)
+
+ self._interCharTimeout = interCharTimeout
+ if self._isOpen: self._reconfigurePort()
+
+ def getInterCharTimeout(self):
+ """Get the current inter-character timeout setting."""
+ return self._interCharTimeout
+
+ interCharTimeout = property(getInterCharTimeout, setInterCharTimeout, doc="Inter-character timeout setting for read()")
+
+
+ # - - - - - - - - - - - - - - - - - - - - - - - -
+
+ def __repr__(self):
+ """String representation of the current port settings and its state."""
+ return "%s<id=0x%x, open=%s>(port=%r, baudrate=%r, bytesize=%r, parity=%r, stopbits=%r, timeout=%r, xonxoff=%r, rtscts=%r, dsrdtr=%r)" % (
+ self.__class__.__name__,
+ id(self),
+ self._isOpen,
+ self.portstr,
+ self.baudrate,
+ self.bytesize,
+ self.parity,
+ self.stopbits,
+ self.timeout,
+ self.xonxoff,
+ self.rtscts,
+ self.dsrdtr,
+ )
+
+if __name__ == '__main__':
+ s = SerialBase()
+ print s.portstr
+ print s.getSupportedBaudrates()
+ print s.getSupportedByteSizes()
+ print s.getSupportedParities()
+ print s.getSupportedStopbits()
+ print s
diff --git a/serial/serialwin32.py b/serial/serialwin32.py
new file mode 100644
index 0000000..f5e8961
--- /dev/null
+++ b/serial/serialwin32.py
@@ -0,0 +1,336 @@
+#! python
+# Python Serial Port Extension for Win32, Linux, BSD, Jython
+# serial driver for win32
+# see __init__.py
+#
+# (C) 2001-2008 Chris Liechti <cliechti@gmx.net>
+# this is distributed under a free software license, see license.txt
+
+import win32file # The base COM port and file IO functions.
+import win32event # We use events and the WaitFor[Single|Multiple]Objects functions.
+import win32con # constants.
+from serialutil import *
+
+#from winbase.h. these should realy be in win32con
+MS_CTS_ON = 16
+MS_DSR_ON = 32
+MS_RING_ON = 64
+MS_RLSD_ON = 128
+
+def device(portnum):
+ """Turn a port number into a device name"""
+ return 'COM%d' % (portnum+1) #numbers are transformed to a string
+
+class Serial(SerialBase):
+ """Serial port implemenation for Win32. This implemenatation requires a
+ win32all installation."""
+
+ BAUDRATES = (50,75,110,134,150,200,300,600,1200,1800,2400,4800,9600,
+ 19200,38400,57600,115200)
+
+ def open(self):
+ """Open port with current settings. This may throw a SerialException
+ if the port cannot be opened."""
+ if self._port is None:
+ raise SerialException("Port must be configured before it can be used.")
+ self.hComPort = None
+ # the "\\.\COMx" format is required for devices other than COM1-COM8
+ # not all versions of windows seem to support this properly
+ # so that the first few ports are used with the DOS device name
+ port = self.portstr
+ if port.upper().startswith('COM') and int(port[3:]) > 8:
+ port = '\\\\.\\' + port
+ try:
+ self.hComPort = win32file.CreateFile(port,
+ win32con.GENERIC_READ | win32con.GENERIC_WRITE,
+ 0, # exclusive access
+ None, # no security
+ win32con.OPEN_EXISTING,
+ win32con.FILE_FLAG_OVERLAPPED,
+ None)
+ except Exception, msg:
+ self.hComPort = None #'cause __del__ is called anyway
+ raise SerialException("could not open port %s: %s" % (self.portstr, msg))
+ # Setup a 4k buffer
+ win32file.SetupComm(self.hComPort, 4096, 4096)
+
+ #Save original timeout values:
+ self._orgTimeouts = win32file.GetCommTimeouts(self.hComPort)
+
+ self._rtsState = win32file.RTS_CONTROL_ENABLE
+ self._dtrState = win32file.DTR_CONTROL_ENABLE
+
+ self._reconfigurePort()
+
+ # Clear buffers:
+ # Remove anything that was there
+ win32file.PurgeComm(self.hComPort,
+ win32file.PURGE_TXCLEAR | win32file.PURGE_TXABORT |
+ win32file.PURGE_RXCLEAR | win32file.PURGE_RXABORT)
+
+ self._overlappedRead = win32file.OVERLAPPED()
+ self._overlappedRead.hEvent = win32event.CreateEvent(None, 1, 0, None)
+ self._overlappedWrite = win32file.OVERLAPPED()
+ #~ self._overlappedWrite.hEvent = win32event.CreateEvent(None, 1, 0, None)
+ self._overlappedWrite.hEvent = win32event.CreateEvent(None, 0, 0, None)
+ self._isOpen = True
+
+ def _reconfigurePort(self):
+ """Set communication parameters on opened port."""
+ if not self.hComPort:
+ raise SerialException("Can only operate on a valid port handle")
+
+ #Set Windows timeout values
+ #timeouts is a tuple with the following items:
+ #(ReadIntervalTimeout,ReadTotalTimeoutMultiplier,
+ # ReadTotalTimeoutConstant,WriteTotalTimeoutMultiplier,
+ # WriteTotalTimeoutConstant)
+ if self._timeout is None:
+ timeouts = (0, 0, 0, 0, 0)
+ elif self._timeout == 0:
+ timeouts = (win32con.MAXDWORD, 0, 0, 0, 0)
+ else:
+ timeouts = (0, 0, int(self._timeout*1000), 0, 0)
+ if self._timeout != 0 and self._interCharTimeout is not None:
+ timeouts = (int(self._interCharTimeout * 1000),) + timeouts[1:]
+
+ if self._writeTimeout is None:
+ pass
+ elif self._writeTimeout == 0:
+ timeouts = timeouts[:-2] + (0, win32con.MAXDWORD)
+ else:
+ timeouts = timeouts[:-2] + (0, int(self._writeTimeout*1000))
+ win32file.SetCommTimeouts(self.hComPort, timeouts)
+
+ win32file.SetCommMask(self.hComPort, win32file.EV_ERR)
+
+ # Setup the connection info.
+ # Get state and modify it:
+ comDCB = win32file.GetCommState(self.hComPort)
+ comDCB.BaudRate = self._baudrate
+
+ if self._bytesize == FIVEBITS:
+ comDCB.ByteSize = 5
+ elif self._bytesize == SIXBITS:
+ comDCB.ByteSize = 6
+ elif self._bytesize == SEVENBITS:
+ comDCB.ByteSize = 7
+ elif self._bytesize == EIGHTBITS:
+ comDCB.ByteSize = 8
+ else:
+ raise ValueError("Unsupported number of data bits: %r" % self._bytesize)
+
+ if self._parity == PARITY_NONE:
+ comDCB.Parity = win32file.NOPARITY
+ comDCB.fParity = 0 # Dis/Enable Parity Check
+ elif self._parity == PARITY_EVEN:
+ comDCB.Parity = win32file.EVENPARITY
+ comDCB.fParity = 1 # Dis/Enable Parity Check
+ elif self._parity == PARITY_ODD:
+ comDCB.Parity = win32file.ODDPARITY
+ comDCB.fParity = 1 # Dis/Enable Parity Check
+ elif self._parity == PARITY_MARK:
+ comDCB.Parity = win32file.MARKPARITY
+ comDCB.fParity = 1 # Dis/Enable Parity Check
+ elif self._parity == PARITY_SPACE:
+ comDCB.Parity = win32file.SPACEPARITY
+ comDCB.fParity = 1 # Dis/Enable Parity Check
+ else:
+ raise ValueError("Unsupported parity mode: %r" % self._parity)
+
+ if self._stopbits == STOPBITS_ONE:
+ comDCB.StopBits = win32file.ONESTOPBIT
+ elif self._stopbits == STOPBITS_TWO:
+ comDCB.StopBits = win32file.TWOSTOPBITS
+ else:
+ raise ValueError("Unsupported number of stop bits: %r" % self._stopbits)
+
+ comDCB.fBinary = 1 # Enable Binary Transmission
+ # Char. w/ Parity-Err are replaced with 0xff (if fErrorChar is set to TRUE)
+ if self._rtscts:
+ comDCB.fRtsControl = win32file.RTS_CONTROL_HANDSHAKE
+ else:
+ comDCB.fRtsControl = self._rtsState
+ if self._dsrdtr:
+ comDCB.fDtrControl = win32file.DTR_CONTROL_HANDSHAKE
+ else:
+ comDCB.fDtrControl = self._dtrState
+ comDCB.fOutxCtsFlow = self._rtscts
+ comDCB.fOutxDsrFlow = self._dsrdtr
+ comDCB.fOutX = self._xonxoff
+ comDCB.fInX = self._xonxoff
+ comDCB.fNull = 0
+ comDCB.fErrorChar = 0
+ comDCB.fAbortOnError = 0
+ comDCB.XonChar = XON
+ comDCB.XoffChar = XOFF
+
+ try:
+ win32file.SetCommState(self.hComPort, comDCB)
+ except win32file.error, e:
+ raise ValueError("Cannot configure port, some setting was wrong. Original message: %s" % e)
+
+ #~ def __del__(self):
+ #~ self.close()
+
+ def close(self):
+ """Close port"""
+ if self._isOpen:
+ if self.hComPort:
+ try:
+ # Restore original timeout values:
+ win32file.SetCommTimeouts(self.hComPort, self._orgTimeouts)
+ except win32file.error:
+ # ignore errors. can happen for unplugged USB serial devices
+ pass
+ # Close COM-Port:
+ win32file.CloseHandle(self.hComPort)
+ win32file.CloseHandle(self._overlappedRead.hEvent)
+ win32file.CloseHandle(self._overlappedWrite.hEvent)
+ self.hComPort = None
+ self._isOpen = False
+
+ def makeDeviceName(self, port):
+ return device(port)
+
+ # - - - - - - - - - - - - - - - - - - - - - - - -
+
+ def inWaiting(self):
+ """Return the number of characters currently in the input buffer."""
+ flags, comstat = win32file.ClearCommError(self.hComPort)
+ return comstat.cbInQue
+
+ def read(self, size=1):
+ """Read size bytes from the serial port. If a timeout is set it may
+ return less characters as requested. With no timeout it will block
+ until the requested number of bytes is read."""
+ if not self.hComPort: raise portNotOpenError
+ if size > 0:
+ win32event.ResetEvent(self._overlappedRead.hEvent)
+ flags, comstat = win32file.ClearCommError(self.hComPort)
+ if self.timeout == 0:
+ n = min(comstat.cbInQue, size)
+ if n > 0:
+ rc, buf = win32file.ReadFile(self.hComPort, win32file.AllocateReadBuffer(n), self._overlappedRead)
+ win32event.WaitForSingleObject(self._overlappedRead.hEvent, win32event.INFINITE)
+ read = str(buf)
+ else:
+ read = ''
+ else:
+ rc, buf = win32file.ReadFile(self.hComPort, win32file.AllocateReadBuffer(size), self._overlappedRead)
+ n = win32file.GetOverlappedResult(self.hComPort, self._overlappedRead, 1)
+ read = str(buf[:n])
+ else:
+ read = ''
+ return read
+
+ def write(self, data):
+ """Output the given string over the serial port."""
+ if not self.hComPort: raise portNotOpenError
+ if not isinstance(data, str):
+ raise TypeError('expected str, got %s' % type(data))
+ #print repr(s),
+ if data:
+ #~ win32event.ResetEvent(self._overlappedWrite.hEvent)
+ err, n = win32file.WriteFile(self.hComPort, data, self._overlappedWrite)
+ if err: #will be ERROR_IO_PENDING:
+ # Wait for the write to complete.
+ #~ win32event.WaitForSingleObject(self._overlappedWrite.hEvent, win32event.INFINITE)
+ n = win32file.GetOverlappedResult(self.hComPort, self._overlappedWrite, 1)
+ if n != len(data):
+ raise writeTimeoutError
+
+
+ def flushInput(self):
+ """Clear input buffer, discarding all that is in the buffer."""
+ if not self.hComPort: raise portNotOpenError
+ win32file.PurgeComm(self.hComPort, win32file.PURGE_RXCLEAR | win32file.PURGE_RXABORT)
+
+ def flushOutput(self):
+ """Clear output buffer, aborting the current output and
+ discarding all that is in the buffer."""
+ if not self.hComPort: raise portNotOpenError
+ win32file.PurgeComm(self.hComPort, win32file.PURGE_TXCLEAR | win32file.PURGE_TXABORT)
+
+ def sendBreak(self, duration=0.25):
+ """Send break condition. Timed, returns to idle state after given duration."""
+ if not self.hComPort: raise portNotOpenError
+ import time
+ win32file.SetCommBreak(self.hComPort)
+ time.sleep(duration)
+ win32file.ClearCommBreak(self.hComPort)
+
+ def setBreak(self, level=1):
+ """Set break: Controls TXD. When active, to transmitting is possible."""
+ if not self.hComPort: raise portNotOpenError
+ if level:
+ win32file.SetCommBreak(self.hComPort)
+ else:
+ win32file.ClearCommBreak(self.hComPort)
+
+ def setRTS(self, level=1):
+ """Set terminal status line: Request To Send"""
+ if not self.hComPort: raise portNotOpenError
+ if level:
+ self._rtsState = win32file.RTS_CONTROL_ENABLE
+ win32file.EscapeCommFunction(self.hComPort, win32file.SETRTS)
+ else:
+ self._rtsState = win32file.RTS_CONTROL_DISABLE
+ win32file.EscapeCommFunction(self.hComPort, win32file.CLRRTS)
+
+ def setDTR(self, level=1):
+ """Set terminal status line: Data Terminal Ready"""
+ if not self.hComPort: raise portNotOpenError
+ if level:
+ self._dtrState = win32file.DTR_CONTROL_ENABLE
+ win32file.EscapeCommFunction(self.hComPort, win32file.SETDTR)
+ else:
+ self._dtrState = win32file.DTR_CONTROL_DISABLE
+ win32file.EscapeCommFunction(self.hComPort, win32file.CLRDTR)
+
+ def getCTS(self):
+ """Read terminal status line: Clear To Send"""
+ if not self.hComPort: raise portNotOpenError
+ return MS_CTS_ON & win32file.GetCommModemStatus(self.hComPort) != 0
+
+ def getDSR(self):
+ """Read terminal status line: Data Set Ready"""
+ if not self.hComPort: raise portNotOpenError
+ return MS_DSR_ON & win32file.GetCommModemStatus(self.hComPort) != 0
+
+ def getRI(self):
+ """Read terminal status line: Ring Indicator"""
+ if not self.hComPort: raise portNotOpenError
+ return MS_RING_ON & win32file.GetCommModemStatus(self.hComPort) != 0
+
+ def getCD(self):
+ """Read terminal status line: Carrier Detect"""
+ if not self.hComPort: raise portNotOpenError
+ return MS_RLSD_ON & win32file.GetCommModemStatus(self.hComPort) != 0
+
+ # - - platform specific - - - -
+
+ def setXON(self, level=True):
+ """Platform specific - set flow state."""
+ if not self.hComPort: raise portNotOpenError
+ if level:
+ win32file.EscapeCommFunction(self.hComPort, win32file.SETXON)
+ else:
+ win32file.EscapeCommFunction(self.hComPort, win32file.SETXOFF)
+
+#Nur Testfunktion!!
+if __name__ == '__main__':
+ s = Serial(0)
+ print s
+
+ s = Serial()
+ print s
+
+
+ s.baudrate = 19200
+ s.databits = 7
+ s.close()
+ s.port = 0
+ s.open()
+ print s
+
diff --git a/serial/sermsdos.py b/serial/sermsdos.py
new file mode 100644
index 0000000..a516118
--- /dev/null
+++ b/serial/sermsdos.py
@@ -0,0 +1,215 @@
+# sermsdos.py
+#
+# History:
+#
+# 3rd September 2002 Dave Haynes
+# 1. First defined
+#
+# Although this code should run under the latest versions of
+# Python, on DOS-based platforms such as Windows 95 and 98,
+# it has been specifically written to be compatible with
+# PyDOS, available at:
+# http://www.python.org/ftp/python/wpy/dos.html
+#
+# PyDOS is a stripped-down version of Python 1.5.2 for
+# DOS machines. Therefore, in making changes to this file,
+# please respect Python 1.5.2 syntax. In addition, please
+# limit the width of this file to 60 characters.
+#
+# Note also that the modules in PyDOS contain fewer members
+# than other versions, so we are restricted to using the
+# following:
+#
+# In module os:
+# -------------
+# environ, chdir, getcwd, getpid, umask, fdopen, close,
+# dup, dup2, fstat, lseek, open, read, write, O_RDONLY,
+# O_WRONLY, O_RDWR, O_APPEND, O_CREAT, O_EXCL, O_TRUNC,
+# access, F_OK, R_OK, W_OK, X_OK, chmod, listdir, mkdir,
+# remove, rename, renames, rmdir, stat, unlink, utime,
+# execl, execle, execlp, execlpe, execvp, execvpe, _exit,
+# system.
+#
+# In module os.path:
+# ------------------
+# curdir, pardir, sep, altsep, pathsep, defpath, linesep.
+#
+
+import os
+import sys
+import string
+import serialutil
+
+BAUD_RATES = {
+ 110: "11",
+ 150: "15",
+ 300: "30",
+ 600: "60",
+ 1200: "12",
+ 2400: "24",
+ 4800: "48",
+ 9600: "96",
+ 19200: "19"}
+
+(PARITY_NONE, PARITY_EVEN, PARITY_ODD, PARITY_MARK,
+PARITY_SPACE) = range(5)
+(STOPBITS_ONE, STOPBITS_ONEANDAHALF,
+STOPBITS_TWO) = (1, 1.5, 2)
+FIVEBITS, SIXBITS, SEVENBITS, EIGHTBITS = (5,6,7,8)
+(RETURN_ERROR, RETURN_BUSY, RETURN_RETRY, RETURN_READY,
+RETURN_NONE) = ('E', 'B', 'P', 'R', 'N')
+portNotOpenError = ValueError('port not open')
+
+def device(portnum):
+ return 'COM%d' % (portnum+1)
+
+class Serial(serialutil.FileLike):
+ """
+ port: number of device; numbering starts at
+ zero. if everything fails, the user can
+ specify a device string, note that this
+ isn't portable any more
+ baudrate: baud rate
+ bytesize: number of databits
+ parity: enable parity checking
+ stopbits: number of stopbits
+ timeout: set a timeout (None for waiting forever)
+ xonxoff: enable software flow control
+ rtscts: enable RTS/CTS flow control
+ retry: DOS retry mode
+ """
+ def __init__(self,
+ port,
+ baudrate = 9600,
+ bytesize = EIGHTBITS,
+ parity = PARITY_NONE,
+ stopbits = STOPBITS_ONE,
+ timeout = None,
+ xonxoff = 0,
+ rtscts = 0,
+ retry = RETURN_RETRY
+ ):
+
+ if type(port) == type(''):
+ #strings are taken directly
+ self.portstr = port
+ else:
+ #numbers are transformed to a string
+ self.portstr = device(port+1)
+
+ self.baud = BAUD_RATES[baudrate]
+ self.bytesize = str(bytesize)
+
+ if parity == PARITY_NONE:
+ self.parity = 'N'
+ elif parity == PARITY_EVEN:
+ self.parity = 'E'
+ elif parity == PARITY_ODD:
+ self.parity = 'O'
+ elif parity == PARITY_MARK:
+ self.parity = 'M'
+ elif parity == PARITY_SPACE:
+ self.parity = 'S'
+
+ self.stop = str(stopbits)
+ self.retry = retry
+ self.filename = "sermsdos.tmp"
+
+ self._config(self.portstr, self.baud, self.parity,
+ self.bytesize, self.stop, self.retry, self.filename)
+
+ def __del__(self):
+ self.close()
+
+ def close(self):
+ pass
+
+ def _config(self, port, baud, parity, data, stop, retry,
+ filename):
+ comString = string.join(("MODE ", port, ":"
+ , " BAUD= ", baud, " PARITY= ", parity
+ , " DATA= ", data, " STOP= ", stop, " RETRY= ",
+ retry, " > ", filename ), '')
+ os.system(comString)
+
+ def setBaudrate(self, baudrate):
+ self._config(self.portstr, BAUD_RATES[baudrate],
+ self.parity, self.bytesize, self.stop, self.retry,
+ self.filename)
+
+ def inWaiting(self):
+ """returns the number of bytes waiting to be read"""
+ raise NotImplementedError
+
+ def read(self, num = 1):
+ """Read num bytes from serial port"""
+ handle = os.open(self.portstr,
+ os.O_RDONLY | os.O_BINARY)
+ # print os.fstat(handle)
+ rv = os.read(handle, num)
+ os.close(handle)
+ return rv
+
+ def write(self, s):
+ """Write string to serial port"""
+ handle = os.open(self.portstr,
+ os.O_WRONLY | os.O_BINARY)
+ rv = os.write(handle, s)
+ os.close(handle)
+ return rv
+
+ def flushInput(self):
+ raise NotImplementedError
+
+ def flushOutput(self):
+ raise NotImplementedError
+
+ def sendBreak(self):
+ raise NotImplementedError
+
+ def setRTS(self,level=1):
+ """Set terminal status line"""
+ raise NotImplementedError
+
+ def setDTR(self,level=1):
+ """Set terminal status line"""
+ raise NotImplementedError
+
+ def getCTS(self):
+ """Eead terminal status line"""
+ raise NotImplementedError
+
+ def getDSR(self):
+ """Eead terminal status line"""
+ raise NotImplementedError
+
+ def getRI(self):
+ """Eead terminal status line"""
+ raise NotImplementedError
+
+ def getCD(self):
+ """Eead terminal status line"""
+ raise NotImplementedError
+
+ def __repr__(self):
+ return string.join(( "<Serial>: ", self.portstr
+ , self.baud, self.parity, self.bytesize, self.stop,
+ self.retry , self.filename), ' ')
+
+if __name__ == '__main__':
+ print __name__
+ s = Serial(0)
+ print s
+
+
+
+
+
+
+
+
+
+
+
+
+
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