Hey, have a look at this link.https://github.com/timkruse/stusb4500/blob/master/docs/STUSB45_RegisterDescription_inofficial.pdfMaybe this helps already.

Regarding your question concerning the password: Before you can change anything in the nvm you have to unlock it via writing the password 0x47 into the password register 0x95. The preallocated buffer of 10 Bytes is nonsense in my opinion, as there is...