% Registration The BlueZ towards a wireless world of penguins % [2]Register/Submit Proposal Marcel Holtmann (marcel@holtmann.org) The Bluetooth wireless technology is getting more and more attention. There are a lot of devices available and most of them are working perfect with Linux, because Linux has the BlueZ. This is the codename of the official Bluetooth protocol stack for Linux and since its announcement on May, 3rd 2001 many things have been improved. Now it is possible to use Bluetooth for simple cable free serial connections, dialup networks, TCP/IP networks, ISDN networks, human interface devices, printing, imaging, file transfers, contact and calendar synchronization etc. All these services are designed to integrate seamlessly into existing and established parts of Linux, like the kernel TTY layer, the network subsystem, the CUPS printing architecture, the OpenOBEX library and so on. This talk will explain the architecture of BlueZ and demonstrate its easy usability.