Bluetooth stack

BSD FreeBSD The FreeBSD bluetooth stack is implemented using the Netgraph framework. A broad variety of Bluetooth USB dongles are supported by the ng_ubt driver. The implementation was committed in 2002, and first released with FreeBSD 5.0. NetBSD NetBSD has its own Bluetooth implementation, committed in 2006, and first released with . OpenBSD OpenBSD has had the implementation from NetBSD for some time, but it was removed in 2014 due lack of maintainership and code rot. DragonFly BSD DragonFly BSD has had NetBSD's Bluetooth implementation since 1.11 (2008), first released with . A netgraph-based implementation from FreeBSD has also been available in the tree since 2008, dating to an import of Netgraph from the FreeBSD 7 timeframe into DragonFly, but was possibly disabled until 2014-11-15, and may still require more work. Linux BlueALSA BlueALSA is a Bluetooth audio ALSA backend that allows the use of Bluetooth-connected audio devices without the use of PulseAudio or PipeWire. BlueZ BlueZ, initially developed by Qualcomm, is a Bluetooth stack, included with the official Linux kernel distributions, for Linux kernel-based family of operating systems. Its goal is to program an implementation of the Bluetooth wireless standards specifications for Linux. As of 2006, the BlueZ stack supports all core Bluetooth protocols and layers. It was initially developed by Qualcomm, and is available for Linux kernel versions 2.4.6 and up. In addition to the basic stack, the bluez-utils and bluez-firmware packages contain low level utilities such as dfutool which can interrogate the Bluetooth adapter chipset to determine whether its firmware can be upgraded. BlueZ is licensed under the GNU General Public License (GPL), but reported to be on its way toward switching to the GNU Lesser General Public License (LGPL). hidd is the Bluetooth human interface device (HID) daemon. BlueDroid/Fluoride Android switched from BlueZ to its own BlueDroid stack, created by Broadcom, in late 2012. Marcel Holtmann, from the Intel Open Source Technology Center, implied that Google made a poor choice in switching to BlueDroid, during a presentation for BlueZ for Android at the Android Builders Summit in 2014. The name Gabeldorsche very indirectly relates to Sweyn Forkbeard, the son and successor of Harald Bluetooth. macOS Since version 10.2, Apple Inc.'s macOS has contained an integrated Bluetooth stack. Included profiles are DUN, SPP, FAX, HID, HSP, SYNC, PAN, BPP and OBEX. Mac OS X 10.5 added support for A2DP and AVRCP. Windows Microsoft Bluetooth Stack Prior to Windows 8, the Microsoft Bluetooth Stack only supports external or integrated Bluetooth dongles attached through USB. It does not support Bluetooth radio connections over PCI, I2C, serial, PC Card or other interfaces. It also only supports a single Bluetooth radio. Generally, only a single stack can be used at any time: switching usually requires uninstalling the current stack, although a trace of previous stacks remains in the Windows registry. However, there are some cases where two stacks can be used on the same Microsoft Windows system, each using their own separate Bluetooth radio hardware. Windows versions: • Windows 2000 or Windows ME : Microsoft has not released an official Bluetooth stack for these old Windows versions. • Windows Embedded Compact (formerly Windows CE) supports UART, USB, SDIO, and BCSP connections. Third party stacks can also be installed on Windows CE devices, including Widcomm, BlueSoleil and Toshiba, depending on the embedded device and which version of the OS is installed. • Windows XP had a built-in Bluetooth stack starting with the Service Pack 2 update, released on 2004-08-06. Windows XP SP2 and SP3 support Bluetooth 1.1 (but not 1.0), Bluetooth 2.0 and Bluetooth 2.0+EDR (Enhanced Data Rate). Profiles can be toggled in the "Services" tab of each Bluetooth Device to disable unsupported profiles. • Windows XP SP1 : Microsoft released a QFE of its Bluetooth stack (labelled as QFE323183) to install onto Windows XP Service Pack 1. Microsoft only released this directly to third-party companies and did not directly release it to the public. The third-party companies were then allowed to release the QFE as part of their own Bluetooth device's software installation. Microsoft no longer supports this QFE. • The Windows Vista Bluetooth stack is improved, with support for more hardware IDs, EDR performance improvements, Adaptive frequency hopping for Wi-Fi co-existence, and Synchronous Connection Oriented (SCO) protocol support which is needed for audio profiles. KB942567 called Windows Vista Feature Pack for Wireless adds Bluetooth 2.1+EDR support and remote wake from S3 or S4 support for self-powered Bluetooth modules. • Windows 8.1 added developer APIs for Bluetooth Low Energy (GATT) and RFCOMM. • Windows 10 converged the Windows Phone and Windows Bluetooth stacks. Note : The Windows XP/Vista Windows Vista/Windows 7 Bluetooth stack supports the following Bluetooth profiles natively: PANU, SPP, DUN, OPP, OBEX, HID, HCRP. Bluetooth profiles exposed by the device but unsupported by the Windows stack will show as "Bluetooth Peripheral Device" in Device Manager. Broadcom WIDCOMM (BTW) WIDCOMM was 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. Broadcom continues to license the stack for inclusion with many Bluetooth-powered end-user devices like Qualcomm Atheros, Realtek, Ralink. An API is available for interacting with the stack from a custom application. For developers there is also a utility named BTServer Spy Lite bundled with the stack (some vendor-tied versions excluded) which monitors Bluetooth activity on the stack at a very low level — although the category and level of trace is configurable. This stack also allows use of RFCOMM without creating a virtual serial port in the operating system. Toshiba Bluetooth Stack In 2001, Toshiba first announced a notebook design that would integrate a Bluetooth antenna inside the lid. Toshiba then went on to release the first two notebook models to offer dual Bluetooth/Wi-Fi integration. Toshiba has created its own Bluetooth stack for use on Microsoft Windows. Toshiba licenses their stack to other original equipment manufacturers (OEM) and has shipped with some Fujitsu Siemens, ASUS, Dell and Sony laptops. A non-disclosure agreement must be signed to obtain the API. The Toshiba stack is also available with certain non-OEM Bluetooth accessories such as USB Bluetooth dongles and PCMCIA cards from various vendors. The Toshiba stack supports one of the more comprehensive list of Bluetooth profiles including: SPP, DUN, FAX, LAP, OPP, FTP, HID, HDP, HCRP, PAN, BIP, HSP, HFP (including Skype support), A2DP, AVRCP. The latest version of the Toshiba stack is 9.20.02(T), released on 30 September 2016. CSR Harmony In 2010 CSR plc (formerly Cambridge Silicon Radio) created its own Bluetooth stack. It was based on CSR Synergy BT host stack. CSR was acquired by Qualcomm in August 2015. IVT BlueSoleil (1000Moons) BlueSoleil (marketed as 1000Moons in China) is a product of IVT Corporation, which produces stacks for embedded devices and desktop systems. The stack is available in both standard and VOIP versions. It supports the profiles A2DP, DUN, FAX, HFP, HSP, LAP, OBEX, OPP, PAN, SPP, AV, BIP, FTP, HID and SYNC. An SDK for third-party application developers is available for non-commercial use at the BlueSoleil download site, but this API will only work with the non-free version of the stack, BlueSoleil 6.4 and above. As of April 2018, the latest version of the global BlueSoleil stack is 10.0.497.0, released on 8 January 2018. The Chinese 1000Moons stack is at version 10.2.497.0, released on 9 January 2018. AVM BlueFRITZ! BlueFRITZ! was the stack supplied with the USB Bluetooth dongles from the German manufacturer AVM GmbH. It supported the profiles SPP, DUN, FTP, FAX and some more. HID was not supported. This stack could be switched into a mode where it is off and the Microsoft stack is used instead. Development of this stack has been aborted. Digianswer BTSWS Digianswer was a subsidiary of Motorola, Inc. since 1999. Digianswer Bluetooth Software Suite (BTSWS) was marketed and sold through OEM customers such as Motorola, Dell and IBM, which bundled PCMCIA and USB products together with BTSWS. The product has been available since August 2000. ==Embedded implementations==