freq per each chip would require a massive overhaul of the bitmain code. Not that I am aware of. I know there is one that floats around with a dev fee that supposedly is per chip but it's actually per board and it's all just a fake ui stating it is changing chips individually. Pretty sure you cant per chip anyways.
so, then do you know how fw with devfee that has individual chip freq tuning works? is that developed completely from scratch or based on bitmain bmminer code?