On 09:24 am, mhu...@imko.de wrote: >Hi @all! > >I'm trying to write a python library module for a special >serial communication protocol called IMPBUS. To use the serial >interface for sending and receiving packets as for now I'm >sub-classing pyserial. My code looks like this: > >[snip] > >But the problem is that I can't use select with pyserial on Windows, >because it don't provide the fileno() methode. So after some googling >I found twisted.internet.serialport "A select()able serial device, >acting >as a transport." > >I never used twisted before so I'm a little overwhelmed by how I can >replace pyserial with twisted in the code above ... maybe someone can >point me to the right direction. It seems I need a "Protocol" and a >"receiver" ...
See the serialport examples on the website. A couple are linked from http://twistedmatrix.com/documents/current/core/examples/. You do indeed want a Protocol subclass. The code from your "self.read(7)" line to the end of that loop will probably end up in a dataReceived method - but note that you'll have to do some buffering, as you can't be assured that dataReceived will get called with exactly the number of bytes you want at a time, so you may have to collect data from multiple dataReceived calls (likewise you may get more than you want at once, and need to split it up). Jean-Paul _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
