This fixes a bug with the recently merged --vcom flag.
The problem is that self.vcom in papertty.py is initialized as None by default, so it gets passed through as None to the above command if it isn't specified, or if using a mode other than terminal.
It is now checked in the driver to make sure it's set.
This fixes a bug with the recently merged --vcom flag.
The problem is that self.vcom in papertty.py is initialized as None by default, so it gets passed through as None to the above command if it isn't specified, or if using a mode other than terminal. It is now checked in the driver to make sure it's set.