bluetoothd is a daemon (background service) in Linux that is responsible for managing Bluetooth devices and settings on the system. bluetoothd is a part of the bluez package, which is a suite of tools and libraries for managing Bluetooth devices on Linux systems.
bluetoothd is usually started automatically when you boot your Linux system and runs in the background, listening for incoming Bluetooth connections and managing the Bluetooth devices on the system. You can use the bluetoothctl command to interact with bluetoothd and manage your Bluetooth devices and settings.
To use bluetoothd, you will need to have the bluez package installed on your Linux system. You can install bluez using the package manager for your specific distribution of Linux. For example, on an Ubuntu system, you can use the apt command to install bluez:
$ sudo apt install bluez
Once bluez is installed, bluetoothd will be started automatically when you boot your Linux system. You can check the status of bluetoothd by running the following command:
# systemctl status bluetooth
This command will display the current status of bluetoothd and any related services, along with any error messages or other information. For more information on using bluetoothd and bluetoothctl, you can consult the bluez documentation or use the man command to view the manual pages for these utilities.
bluetoothd Command Examples
1. Start the daemon:
2. Start the daemon, logging to stdout:
# bluetoothd --nodetach
3. Start the daemon with a specific configuration file (defaults to `/etc/bluetooth/main.conf`):
# bluetoothd --configfile path/to/file
4. Start the daemon with verbose output to stderr:
# bluetoothd --debug
5. Start the daemon with verbose output coming from specific files in the bluetoothd or plugins source:
# bluetoothd --debug=path/to/file1:path/to/file2:path/to/file3