bug┬Áracoli - Bugs: bug #30048, Access denied for open com port on...


bug #30048: Access denied for open com port on WIN XP w/ pyserial

Submitter:  Axel Wachtler <awachtler>
Submitted:  Fri 04 Jun 2010 07:04:39 AM UTC
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Status:  None
Assigned to:  awachtler Open/Closed:  Open
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Fri 04 Jun 2010 07:04:39 AM UTC, original submission:  

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

--- 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.RxThread=threading.Thread(target = self.__rx__)

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

Axel Wachtler <awachtler>
Project Administrator


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    2010-06-04 awachtler Assigned toNone awachtler
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