CrystalFontz 635 project

[Scott Flynn]

I'm finally around to playing around with my LCD module. I chose Linux for
OS, pygtk for the GUI, a CF635 Python library written by Thomas Cauley
(found on CF website) for a starting point in sending commands to the LCD,
and gobject.io_add_watch for listening for packets coming from the LCD. It
became clear as soon as I started receiving packets that I would need some
threading support. My attempts at working that in have been successful to
some degree, but there's still something, and while I doubt many can run the
program to see what it does, I was hoping someone could possibly tell me if
I'm just going about this threading business "the wrong way."

You can download the files from http://starlon.net/files/CF635.1.tar.gz

Pertinate files: CF635.py (main file), CFListener.py, CFFans.py,
pyCF635Driver.py

Basically, when I set a fan or more to report, the packets come in fine and
the program processes them, but every once in a while the GUI hangs. I'm not
sending commands to the LCD during this time. I'm just letting the program
run. I realize outgoing commands aren't wrapped/threaded yet. I'm not sure
if they need to be. I have a threading.Lock setup in SendCommand though, so
I'm also wondering if I need the threading.
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