Found Steamconroller’s support for iOs here
I have written similar manager before, trying to get steamcontroller to work with my AppleTv
Of course it’s not working (Apple prohibits using of HID-device via Bluetooth in iOs and TVOS)
So, the question is - why this class was created and how It could be used?
PS: VALVE was developing their SteamLink iOs app with idea to control it with SteamController, so the definitely have had their own protocol through bluetooth avoiding Apples MFI program.