In MAX, under Devices and Interfaces, Create New... there is a list of several devices, some NI and others generic. If I were interested in creating a new interface type to a hardware driver I've created, with custom configuration screens, where might I start to look? There would need to be some kind of reference that would also appear in LabVIEW, like a DAQmx task. My guess is that this is mostly proprietary at this point, but I would like to gather as much information on this as possible.
