I need to write some code at the NDK level to access some Bluetooth features that aren't exposed at the Java level. For example, I want to have a 2nd bluetooth adapter on my Android device. I looked at the SDK download and the Github Android samples and there isn't anything obvious there to help. Is there any C code or SDK/API docs that can be used? I looked at getting the card and SDK from a supplier but they didn't know if there would be any Android driver support either, and suggested that I come here for guidance. Any ideas would be appreciated. Right now, I just building my application using generic code that accesses the bluedroid headers in the NDK, and it's very painful! Thanks.