ledgerhq / btchip-java-api Goto Github PK

Hi,
I' considering using java to control a ledger Nano S.
I succeeded in starting USB layer, but VID/PID was wrong (it is 0x2c97/0x0001), and anyway even the getFirmwareVersion() fails.
It seems this API is not maintained ?
Is there a version working for Ledger NanoS , or even something more up to date one can adapt with reverse engineering of current Chrome/Python API ?
BTW Is there detailed documentation for the core function of NanoS, like those implemented by python loader api ?
Best regards

I’m trying to implement SegWit signing using Ledger devices in Mycelium wallet. So far I’ve been trying to port changes from your python repository python api and tried to reuse changes you’ve made in GreenBits. Unfortunately I had no luck, transactions were signed incorrectly.
Today I’ve started playing with legacy transactions and after some successful received same error as on SegWit. (mandatory-script-verify-flag-failed).
Work device: Ledger Nano S.
@btchip, maybe you have an idea why might this happen, or could point me to right docs. Any kind of help would be really appreciated.

Currently, this library requires the user to copy the source into their project instead of just including it as a dependency. I think it would be beneficial in many ways for the maintainer to package a jar and host it online to allow easier usage.