Hi I have just started working on bluetooth on Raspberry Pi 3 (model B). I am successfully able to build Bluez(5.43) with debug enabled. My intention is to 1. limit access (say only able to play music but no HFP support) to selected User. 2. Add 2-way authentication for new User (via already registered Primary User). I'm currently going through the debug logs for different cases. While I am exploring Bluez for the same, I would appreciate if someone could tell me if the above idea is feasible and if so, any pointers to start with. Regards, --bhushan