Aktueller Stand ist Bluez 5.70

• nötige Pakete installieren
  sudo apt install git build-essential libbluetooth-dev libglib2.0-dev libdbus-1-dev git automake libtool libudev-dev libical-dev libreadline-dev python3-docutils -y
• Bluez klonen
  cd ~ && git clone https://github.com/bluez/bluez.git && cd bluez/
• ./bootstrap
• ./configure --prefix=/usr --mandir=/usr/share/man --sysconfdir=/etc --localstatedir=/var
• make clean && make -j4
• sudo make install
• Test
  btmon -v
  

• sudo systemctl daemon-reload
• sudo systemctl restart bluetooth.service
• Check
  sudo systemctl status bluetooth.service
  

• sudo reboot

• nano nano tools/rctest.c * nach SIOCGSTAMP und in SIOCGSTAMP_OLD'' umbenennen