Hello, I made an I/O expander device for the Raspberry PI based on the MCP23S17. I decided to edit the driver for it to delete some options I don't need and to add an IO mapping to the device. I managed to delete the things I don't need but I do not understand how to add the I/O mapping to variables. I have added them in the HostParameterSet in the xml file and they do appear in when I add the device to a project. But how do I assign a value to it? For example if I have 8 outputs on my device, I...