Program


Playing BlueZ on the D-Bus

Marcel Holtmann

Vsebina je na voljo samo v angleškem jeziku.

The integration of the Bluetooth technology into the Linux kernel and the major Linux distributions has progressed really fast over the last two years. The technology is present almost everywhere. All modern notebooks and mobile phones are shipped with built-in Bluetooth. The use of Bluetooth form a Linux based system is easy and in most cases it only needs an one-time setup, but all the tools are still command line based. In general this is not so bad but for a greater success it is needed to seamlessly integrate the Bluetooth technology into the desktop. There have been approaches for the GNOME and KDE desktops. Both have been quite successful and made the use of Bluetooth easy. The problem however is that both implemented their own framework around the Bluetooth library and its daemons and there were no possibilities for programs from one system to talk to the other. With the final version of the D-Bus framework and its adaption into the Bluetooth subsystem of Linux it will be simple to make all applications Bluetooth aware. The idea is to establish one central Bluetooth daemon that takes care of all task that can't or shouldn't be handled inside the Linux kernel. These jobs include PIN code and link key management for the authentication and encryption, caching of device names and services and also central control of the Bluetooth hardware. All possible tasks and configuration options are accessed via the D-Bus interface. This will allow to abstract the internals of GNOME and KDE applications from any technical details of the Bluetooth specification. Even other application will get access to the Bluetooth technology without any hassle.

The talk will introduce the new D-Bus interface for Bluetooth and demonstrate how easy it can be used from within different programming and scripting languages. Besides the currently established interface it will also cover the planned extensions. Devices like the Nokia 770 are already using D-Bus for the Bluetooth technology and this talk will also cover this device and other Linux based embedded device that are using Bluetooth. Since the D-Bus is an open standard this talk will also cover how other operating systems like FreeBSD or OpenSolaris might be able to use it and what is needed from the client applications to support these operating systems.

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* Program je še v izdelavi in se bo dopolnjeval.