[uracoli-devel] [bug #30048] Access denied for open com port on WIN XP w/ pyserial

[Axel Wachtler]

URL:
  <http://savannah.nongnu.org/bugs/?30048>

                 Summary: Access denied for open com port on WIN XP w/
pyserial
                 Project: µracoli
            Submitted by: awachtler
            Submitted on: Fri 04 Jun 2010 07:04:39 AM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
                  Status: None
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

It happened that on a windows XP machine the software was able to 
open the COM port once and then never again. Stefan Colditz provided a fix
for it, which was found on
http://bodybugglinux.blogspot.com/2009/07/command-line-extraction-tool.html.

A ser.close() before ser.open() has to be done for the windows 
user.

--- old/ieee802154_io.py      2010-02-22 21:54:38.000000000 +0100
+++ new/ieee802154_io.py      2010-06-04 08:53:20.000000000 +0200
@@ -144,6 +144,7 @@
             self.BAUDRATE = eval(baud)
         self.fname = port
         self.sport = serial.Serial(self.fname, self.BAUDRATE, timeout=10)
+        self.sport.close()
         self.sport.open()
         self.RxThread=threading.Thread(target = self.__rx__)
         self.RxThread.setDaemon(1)



Arrrgghhhh ... the script code gets uglier and uglier since supporting this
OS :-(




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