Is it possible to "dumb down" Linux to send ethernet datagrams over Lightning/30-pin dock connector?

I am wanting to 'reverse' tether my Linux desktop with an iPhone (Linux acting as server/router and iPhone is its client). Thanks to Apple, it is a lot of PITA to do anything hacky with their mobile devices. I have came across various webpages already and the best thing I saw was it requires jailbreak to accomplish. On the other hand there are lots of RJ-45 to Lightning adapters available in online market-places and according to online guides, it is simply plug-n-play to use ethernet using those adapters. Using one of those, I can possibly reverse tether the iPhone by

Linux#-EthernetOverTwistedPairs-#Adapter-=iPhone 
# : RJ 45
= : Lightning

**So, is it possible to for Linux to simply send the datagrams (correct me if the terminology is wrong) directly over a 'USB A to Lightning' cable (forgetting anything it know about iPhone), thus skip the need of intermidiate adapter to map RJ-45 signals to Lightning ? Also for 30-pin dock connector (the older connector of Apple devices)** Note: *NetworkManager* marks the connected iPhone as an ethernet interface. It uses ipeth (iPhone Ethernet) driver to do so, which is intended for tethered (iPhone to Linux) mobile data sharing. Setting up a shared ethernet conection in *NetworkManger* is possible but no network can be seen/used from the iPhone. So that's why the 'dumbing down' part comes, to not use the ipeth thingy.