BlueZ provides support for the core Bluetooth layers and protocols. It is flexible, efficient and uses a modular implementation.

It has many interesting features such as:

• Complete modular implementation
• Symmetric multi processing safe
• Multithreaded data processing
• Support for multiple Bluetooth devices
• Real hardware abstraction
• Standard socket interface to all layers
• Device and service level security support

Currently BlueZ consists of many separate modules:

• Bluetooth kernel subsystem core
• L2CAP and SCO audio kernel layers
• RFCOMM, BNEP, CMTP and HIDP kernel implementations
• HCI UART, USB, PCMCIA and virtual device drivers
• General Bluetooth and SDP libraries and daemons
• Configuration and testing utilities
• Protocol decoding and analysis tools
• Audio Service witch gives support to profiles:

HSP, HFP, AVDTP, A2DP, AVRCP

• Input Service profiles: HID
• Network Service profiles: PAN
• Serial Service profiles: RFCOMM