How to pass file descriptor from UsbDeviceConnection to native code on Android?

Question

According to the docs http://developer.android.com/reference/android/hardware/usb/UsbDeviceConnection.html#getFileDescriptor() returns file descriptor which can be used in native code. How can i pass it to native code (as to child process or via JNI)?

Answer 1

Use UNIX Socket if you want to pass in to child process or just as int via JNI