My vote is for Opal 2.0 initially - and if I can get my hands on a Ruby drive I might want to implement that as well. Enterprise and the others could be interesting for some users, but I think I would need to have people contribute those as I do not have hardware to test.
https://trustedcomputinggroup.org/work-groups/storage/
TCG SSC ...
Extra Features:
My vote is for Opal 2.0 initially - and if I can get my hands on a Ruby drive I might want to implement that as well. Enterprise and the others could be interesting for some users, but I think I would need to have people contribute those as I do not have hardware to test.