(I'm speaking more from a moral standpoint than a legal standpoint. IANAL) It doesn't matter if it's trademarkable. The entire purpose of VIDs is to distinguis

(I'm speaking more from a moral standpoint than a legal standpoint. IANAL) It doesn't matter if it's trademarkable. The entire purpose of VIDs is to distinguish between different vendors' devices. If I'm allocated a VID it's not my responsibility to ensure my drivers interoperate with other vendors' products. How many products using counterfeit FTDI chips don't advertise USB compliance?