Bluetooth stack
From Wikipedia, the free encyclopedia
A Bluetooth stack refers to an implementation of the Bluetooth protocol stack.
Bluetooth stacks can be roughly divided into two:
- General-purpose implementations that are written with emphasis on feature-richness and flexibility, usually for desktop computers.
- Embedded system implementations intended for use in devices where resources are limited and demands are lower, such as Bluetooth peripheral devices.
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[edit] General-purpose implementations
[edit] Windows
[edit] WIDCOMM
WIDCOMM is the first Bluetooth stack for the Windows operating system. The stack was initially developed by a company named Widcomm Inc., which was acquired by Broadcom Corporation in April 2004.[1] Broadcom continues to license the stack for inclusion with many Bluetooth-powered end-user devices.
[edit] Linux
The Linux operating system currently has two widespread Bluetooth stack implementations:
- BlueZ, included with the official Linux kernel distributions, initially developed by Qualcomm.
- Affix, developed by Nokia Research Center.
[edit] BlueZ
BlueZ is the official Bluetooth stack for Linux. Its goal is to make an implementation of the Bluetooth wireless standards specifications for Linux. As of 2006, the BlueZ stack supports all core Bluetooth protocols and layers.[2] It was initially developed by Qualcomm, and is available for Linux kernel versions 2.4.6 and up.
[edit] Embedded implementations
[edit] lwBT
lwBT is an open source lightweight Bluetooth protocol stack for embedded systems. It acts as a network interface for the lwIP protocol stack.
It supports some Bluetooth protocols and layers, such as the H4 and BCSP UART layers. Supported higher layers include: HCI, L2CAP, SDP, BNEP, RFCOMM and PPP. The supported profiles are: PAN (NAP, GN, PANU), LAP, DUN and Serial Port.
lwBT has been ported to the Renesas M16C and Atmega AVR line of microcontrollers, and Linux as well as Windows.
[edit] See also
[edit] References
- ^ Broadcom (2004-04-19). Broadcom to Acquire WIDCOMM, the Industry's Leading Provider of Critical Software for Bluetooth® Wireless Devices. Press release. Retrieved on 2007-03-02.
- ^ Selim Çιracι, Evren Karaca, Mark Reşat Pariente (2006-05-19). "Bluetooth Audio Streaming on Linux-Based Embedded Devices" (PDF). Bilkent University. Retrieved on 2007-03-05.
