Even much simpler chip functions tend not to have an open-source implementation. Open-source doesn't mesh very well with the economics of chip fabrication, is t

Even much simpler chip functions tend not to have an open-source implementation. Open-source doesn't mesh very well with the economics of chip fabrication, is the main reason (in general it doesn't work with hardware as well, but chip fabrication is probably the most inaccessible of hardware types). And yes, wifi is complex. Probably the only function more complex is cell phone radios.