1 # SPDX-License-Identifier: GPL-2.0-only
3 # Bluetooth subsystem configuration
7 tristate "Bluetooth subsystem support"
8 depends on NET && !S390
9 depends on RFKILL || !RFKILL
12 select CRYPTO_SKCIPHER
20 Bluetooth is low-cost, low-power, short-range wireless technology.
21 It was designed as a replacement for cables and other short-range
22 technologies like IrDA. Bluetooth operates in personal area range
23 that typically extends up to 10 meters. More information about
24 Bluetooth can be found at <http://www.bluetooth.com/>.
26 Linux Bluetooth subsystem consist of several layers:
28 HCI device and connection manager, scheduler
30 L2CAP (Logical Link Control and Adaptation Protocol)
31 SMP (Security Manager Protocol) on LE (Low Energy) links
32 HCI Device drivers (Interface to the hardware)
33 RFCOMM Module (RFCOMM Protocol)
34 BNEP Module (Bluetooth Network Encapsulation Protocol)
35 CMTP Module (CAPI Message Transport Protocol)
36 HIDP Module (Human Interface Device Protocol)
38 Say Y here to compile Bluetooth support into the kernel or say M to
39 compile it as module (bluetooth).
41 To use Linux Bluetooth subsystem, you will need several user-space
42 utilities like hciconfig and bluetoothd. These utilities and updates
43 to Bluetooth kernel modules are provided in the BlueZ packages. For
44 more information, see <http://www.bluez.org/>.
47 bool "Bluetooth Classic (BR/EDR) features"
51 Bluetooth Classic includes support for Basic Rate (BR)
52 available with Bluetooth version 1.0b or later and support
53 for Enhanced Data Rate (EDR) available with Bluetooth
56 source "net/bluetooth/rfcomm/Kconfig"
58 source "net/bluetooth/bnep/Kconfig"
60 source "net/bluetooth/cmtp/Kconfig"
62 source "net/bluetooth/hidp/Kconfig"
65 bool "Bluetooth High Speed (HS) features"
69 Bluetooth High Speed includes support for off-loading
70 Bluetooth connections via 802.11 (wifi) physical layer
71 available with Bluetooth version 3.0 or later.
74 bool "Bluetooth Low Energy (LE) features"
78 Bluetooth Low Energy includes support low-energy physical
79 layer available with Bluetooth version 4.0 or later.
82 tristate "Bluetooth 6LoWPAN support"
83 depends on BT_LE && 6LOWPAN
85 IPv6 compression over Bluetooth Low Energy.
88 bool "Enable LED triggers"
93 This option selects a few LED triggers for different
97 bool "Enable Microsoft extensions"
100 This options enables support for the Microsoft defined HCI
104 bool "Export Bluetooth internals in debugfs"
105 depends on BT && DEBUG_FS
108 Provide extensive information about internal Bluetooth states
112 bool "Bluetooth self testing support"
113 depends on BT && DEBUG_KERNEL
115 Run self tests when initializing the Bluetooth subsystem. This
116 is a developer option and can cause significant delay when booting
119 When the Bluetooth subsystem is built as module, then the test
120 cases are run first thing at module load time. When the Bluetooth
121 subsystem is compiled into the kernel image, then the test cases
122 are run late in the initcall hierarchy.
124 config BT_SELFTEST_ECDH
125 bool "ECDH test cases"
126 depends on BT_LE && BT_SELFTEST
128 Run test cases for ECDH cryptographic functionality used by the
129 Bluetooth Low Energy Secure Connections feature.
131 config BT_SELFTEST_SMP
132 bool "SMP test cases"
133 depends on BT_LE && BT_SELFTEST
135 Run test cases for SMP cryptographic functionality, including both
136 legacy SMP as well as the Secure Connections features.
138 config BT_FEATURE_DEBUG
139 bool "Enable runtime option for debugging statements"
140 depends on BT && !DYNAMIC_DEBUG
142 This provides an option to enable/disable debugging statements
143 at runtime via the experimental features interface.
145 source "drivers/bluetooth/Kconfig"