Hey everyone, So I've got a quick query for advice. We have an embedded device in which we are displaying to an LCD device that sits at /dev/screen. This device is not readily available all the time, so I am needing to write an emulator. This will basically just monitor a file, /dev/screen for example, and write the commands to a TK or WxWindows canvas.
So sending 'line 0 0 10 10' will draw a line on my canvas from (0,0) to (10,10). My question: Whats the best way to set up a monitor (in python) of this file? Would I simply open up the file for read, check for changes, get any updated data, and clear the file? Or is there some standard way of doing something like this that guarantees no overlap or data loss? example usage: echo 'line 0 0 10 10' > /dev/screen On the actual embedded device this is handled by a kernel module. We can spit commands into it as fast as we can and the kernel module can keep up. This is typical unix device file behavior. Any suggestions or advice would be splendid. Thanks! Blaine -- http://mail.python.org/mailman/listinfo/python-list
