All in all, while some devices [such as generic USB and bluetooth keyboards and mices] can be used without limitation on PS4, controllers that [supposedly] have high pooling rate are restricted. Sony demands advanced security measures for them. Or at least it demands this chip for "full functionality".
Sony. Pls. Don't do this. There is metric shitton of old Logitech wheels in the wild, many of htem are really great [GT Pro, DFGT, G25, G27], and would be mistake not to support them. At least make it right before GT7 is out.