Linux Kernel in a Nutshell

Name

BT — Bluetooth subsystem support

Bluetooth is low-cost, low-power, short-range wireless technology. It was designed as a replacement for cables and other short-range technologies such as IrDA. Bluetooth operates in personal area range that typically extends up to 10 meters. More information about Bluetooth can be found at http://www.bluetooth.com.

The Linux Bluetooth subsystem consist of several layers:

Bluetooth Core

HCI device and connection manager, scheduler

HCI Device drivers

Interface to the hardware

SCO Module

SCO audio links

L2CAP Module

Logical Link Control and Adaptation Protocol

RFCOMM Module

RFCOMM Protocol

BNEP Module

Bluetooth Network Encapsulation Protocol

CMTP Module

CAPI Message Transport Protocol

HIDP Module

Human Interface Device Protocol

To use the Linux Bluetooth subsystem, you will need several user-space utilities such as hciconfig and hcid. These utilities and updates to Bluetooth kernel modules are provided in the BlueZ packages at http://www.bluez.org.