| # SPDX-License-Identifier: GPL-2.0-only | |
| # | |
| # Bluetooth subsystem configuration | |
| # | |
| menuconfig BT | |
| tristate "Bluetooth subsystem support" | |
| depends on !S390 | |
| depends on RFKILL || !RFKILL | |
| select CRC16 | |
| select CRYPTO | |
| select CRYPTO_LIB_AES | |
| select CRYPTO_LIB_AES_CBC_MACS | |
| select CRYPTO_ECDH | |
| help | |
| Bluetooth is low-cost, low-power, short-range wireless technology. | |
| It was designed as a replacement for cables and other short-range | |
| technologies like IrDA. Bluetooth operates in personal area range | |
| that typically extends up to 10 meters. More information about | |
| Bluetooth can be found at <https://www.bluetooth.com/>. | |
| Linux Bluetooth subsystem consist of several layers: | |
| Bluetooth Core | |
| HCI device and connection manager, scheduler | |
| SCO audio links | |
| L2CAP (Logical Link Control and Adaptation Protocol) | |
| SMP (Security Manager Protocol) on LE (Low Energy) links | |
| ISO isochronous links | |
| HCI Device drivers (Interface to the hardware) | |
| RFCOMM Module (RFCOMM Protocol) | |
| BNEP Module (Bluetooth Network Encapsulation Protocol) | |
| HIDP Module (Human Interface Device Protocol) | |
| Say Y here to compile Bluetooth support into the kernel or say M to | |
| compile it as module (bluetooth). | |
| To use Linux Bluetooth subsystem, you will need several user-space | |
| utilities like hciconfig and bluetoothd. These utilities and updates | |
| to Bluetooth kernel modules are provided in the BlueZ packages. For | |
| more information, see <http://www.bluez.org/>. | |
| config BT_BREDR | |
| bool "Bluetooth Classic (BR/EDR) features" | |
| depends on BT | |
| default y | |
| help | |
| Bluetooth Classic includes support for Basic Rate (BR) | |
| available with Bluetooth version 1.0b or later and support | |
| for Enhanced Data Rate (EDR) available with Bluetooth | |
| version 2.0 or later. | |
| source "net/bluetooth/rfcomm/Kconfig" | |
| source "net/bluetooth/bnep/Kconfig" | |
| source "net/bluetooth/hidp/Kconfig" | |
| config BT_LE | |
| bool "Bluetooth Low Energy (LE) features" | |
| depends on BT | |
| default y | |
| help | |
| Bluetooth Low Energy includes support low-energy physical | |
| layer available with Bluetooth version 4.0 or later. | |
| config BT_LE_L2CAP_ECRED | |
| bool "Bluetooth L2CAP Enhanced Credit Flow Control" | |
| depends on BT_LE | |
| default y | |
| help | |
| Bluetooth Low Energy L2CAP Enhanced Credit Flow Control available with | |
| Bluetooth version 5.2 or later. | |
| This can be overridden by passing bluetooth.enable_ecred=[1|0] | |
| on the kernel commandline. | |
| config BT_6LOWPAN | |
| tristate "Bluetooth 6LoWPAN support" | |
| depends on BT_LE && 6LOWPAN | |
| help | |
| IPv6 compression over Bluetooth Low Energy. | |
| config BT_LEDS | |
| bool "Enable LED triggers" | |
| depends on BT | |
| depends on LEDS_CLASS | |
| select LEDS_TRIGGERS | |
| help | |
| This option selects a few LED triggers for different | |
| Bluetooth events. | |
| config BT_MSFTEXT | |
| bool "Enable Microsoft extensions" | |
| depends on BT | |
| help | |
| This options enables support for the Microsoft defined HCI | |
| vendor extensions. | |
| config BT_AOSPEXT | |
| bool "Enable Android Open Source Project extensions" | |
| depends on BT | |
| help | |
| This options enables support for the Android Open Source | |
| Project defined HCI vendor extensions. | |
| config BT_DEBUGFS | |
| bool "Export Bluetooth internals in debugfs" | |
| depends on BT && DEBUG_FS | |
| default y | |
| help | |
| Provide extensive information about internal Bluetooth states | |
| in debugfs. | |
| config BT_SELFTEST | |
| bool "Bluetooth self testing support" | |
| depends on BT && DEBUG_KERNEL | |
| help | |
| Run self tests when initializing the Bluetooth subsystem. This | |
| is a developer option and can cause significant delay when booting | |
| the system. | |
| When the Bluetooth subsystem is built as module, then the test | |
| cases are run first thing at module load time. When the Bluetooth | |
| subsystem is compiled into the kernel image, then the test cases | |
| are run late in the initcall hierarchy. | |
| config BT_SELFTEST_ECDH | |
| bool "ECDH test cases" | |
| depends on BT_LE && BT_SELFTEST | |
| help | |
| Run test cases for ECDH cryptographic functionality used by the | |
| Bluetooth Low Energy Secure Connections feature. | |
| config BT_SELFTEST_SMP | |
| bool "SMP test cases" | |
| depends on BT_LE && BT_SELFTEST | |
| help | |
| Run test cases for SMP cryptographic functionality, including both | |
| legacy SMP as well as the Secure Connections features. | |
| config BT_FEATURE_DEBUG | |
| bool "Enable runtime option for debugging statements" | |
| depends on BT && !DYNAMIC_DEBUG | |
| help | |
| This provides an option to enable/disable debugging statements | |
| at runtime via the experimental features interface. | |
| source "drivers/bluetooth/Kconfig" |