net-wireless/bluez/files/main.conf - third_party/overlays/chromiumos-overlay - Git at Google

 # Copyright 2020 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 #
 # This file is installed in /etc and copied to /var before being used by
 # bluetoothd to allow run-time edit of DeviceID. Refer start_bluetoothd.sh for
 # details.

 [General]

 # Default adapter name
 # Defaults to 'BlueZ X.YZ'
 #Name = BlueZ

 # Default device class. Only the major and minor device class bits are
 # considered. Defaults to '0x000000'.
 #Class = 0x000100

 # How long to stay in discoverable mode before going back to non-discoverable
 # The value is in seconds. Default is 180, i.e. 3 minutes.
 # 0 = disable timer, i.e. stay discoverable forever
 #DiscoverableTimeout = 0

 # Always allow pairing even if there are no agent registered
 # Possible values: true, false
 # Default: false
 #AlwaysPairable = false

 # How long to stay in pairable mode before going back to non-discoverable
 # The value is in seconds. Default is 0.
 # 0 = disable timer, i.e. stay pairable forever
 #PairableTimeout = 0

 # Use vendor id source (assigner), vendor, product and version information for
 # DID profile support. The values are separated by ":" and assigner, VID, PID
 # and version.
 # Possible vendor id source values: bluetooth, usb (defaults to usb)
 #
 # For Chrome OS, the Device ID is <Google>/<chromeOS>/<versionNumber>
 # BlueZ startup script replaces 0000 part with the Chrome OS version number.
 DeviceID = bluetooth:00e0:c405:0000

 # Do reverse service discovery for previously unknown devices that connect to
 # us. For BR/EDR this option is really only needed for qualification since the
 # BITE tester doesn't like us doing reverse SDP for some test cases, for LE
 # this disables the GATT client functionally so it can be used in system which
 # can only operate as peripheral.
 # Defaults to 'true'.
 #ReverseServiceDiscovery = true

 # Enable name resolving after inquiry. Set it to 'false' if you don't need
 # remote devices name and want shorter discovery cycle. Defaults to 'true'.
 #NameResolving = true

 # Enable runtime persistency of debug link keys. Default is false which
 # makes debug link keys valid only for the duration of the connection
 # that they were created for.
 #DebugKeys = false

 # Restricts all controllers to the specified transport. Default value
 # is "dual", i.e. both BR/EDR and LE enabled (when supported by the HW).
 # Possible values: "dual", "bredr", "le"
 #ControllerMode = dual

 # Enables Multi Profile Specification support. This allows to specify if
 # system supports only Multiple Profiles Single Device (MPSD) configuration
 # or both Multiple Profiles Single Device (MPSD) and Multiple Profiles Multiple
 # Devices (MPMD) configurations.
 # Possible values: "off", "single", "multiple"
 #MultiProfile = off

 # Permanently enables the Fast Connectable setting for adapters that
 # support it. When enabled other devices can connect faster to us,
 # however the tradeoff is increased power consumptions. This feature
 # will fully work only on kernel version 4.1 and newer. Defaults to
 # 'false'.
 #FastConnectable = false

 # Default privacy setting.
 # Enables use of private address.
 # Possible values: "off", "device", "network"
 # "network" option not supported currently
 # Defaults to "off"
 # Privacy = off

 # Specify the policy to the JUST-WORKS repairing initiated by peer
 # Possible values: "never", "confirm", "always"
 # Defaults to "never"
 #JustWorksRepairing = never

 # How long to keep temporary devices around
 # The value is in seconds. Default is 30.
 # 0 = disable timer, i.e. never keep temporary devices
 #TemporaryTimeout = 30

 # Enables the device to issue an SDP request to update known services when
 # profile is connected. Defaults to true.
 #RefreshDiscovery = true

 [BR]
 # The following values are used to load default adapter parameters for BR/EDR.
 # BlueZ loads the values into the kernel before the adapter is powered if the
 # kernel supports the MGMT_LOAD_DEFAULT_PARAMETERS command. If a value isn't
 # provided, the kernel will be initialized to it's default value.  The actual
 # value will vary based on the kernel version and thus aren't provided here.
 # The Bluetooth Core Specification should be consulted for the meaning and valid
 # domain of each of these values.

 # BR/EDR Page scan activity configuration
 PageScanType=1
 #PageScanInterval=
 #PageScanWindow=

 # BR/EDR Inquiry scan activity configuration
 #InquiryScanType=
 #InquiryScanInterval=
 #InquiryScanWindow=

 # BR/EDR Link supervision timeout
 #LinkSupervisionTimeout=

 # BR/EDR Page Timeout
 #PageTimeout=

 # BR/EDR Sniff Intervals
 #MinSniffInterval=
 #MaxSniffInterval=

 # EIR Max Name. This is the maximum length for the COMPLETE_NAME EIR section.
 # If the name length exceeds this size, a SHORT_NAME section is used.
 # Default: 48
 EirMaxNameLength = 180

 [LE]
 # The following values are used to load default adapter parameters for LE.
 # BlueZ loads the values into the kernel before the adapter is powered if the
 # kernel supports the MGMT_LOAD_DEFAULT_PARAMETERS command. If a value isn't
 # provided, the kernel will be initialized to it's default value.  The actual
 # value will vary based on the kernel version and thus aren't provided here.
 # The Bluetooth Core Specification should be consulted for the meaning and valid
 # domain of each of these values.

 # LE advertisement interval (used for legacy advertisement interface only)
 MinAdvertisementInterval=290
 MaxAdvertisementInterval=290
 #MultiAdvertisementRotationInterval=

 # LE scanning parameters used for passive scanning supporting auto connect
 # scenarios
 # 37.5ms (5 * 7.5ms) / 367.5ms (49 * 7.5ms) = 10% duty cycle.
 ScanIntervalAutoConnect=588
 ScanWindowAutoConnect=60

 # LE scanning parameters used for passive scanning supporting wake from suspend
 # scenarios
 #ScanIntervalSuspend=
 #ScanWindowSuspend=

 # LE scanning parameters used for active scanning supporting discovery
 # proceedure
 ScanIntervalDiscovery=36
 ScanWindowDiscovery=18

 # LE scanning parameters used for passive scanning supporting the advertisement
 # monitor Apis
 ScanIntervalAdvMonitor=40
 ScanWindowAdvMonitor=20

 # LE scanning parameters used for connection establishment.
 #ScanIntervalConnect=
 #ScanWindowConnect=

 # LE default connection parameters.  These values are superceeded by any
 # specific values provided via the Load Connection Parameters interface
 #MinConnectionInterval=
 #MaxConnectionInterval=
 #ConnectionLatency=
 ConnectionSupervisionTimeout=200
 Autoconnecttimeout=5000

 # Scan duration during interleaving scan. Only used when scanning for ADV
 # monitors. The units are msec.
 # Default: 300
 #AdvMonAllowlistScanDuration=
 # Default: 500
 #AdvMonNoFilterScanDuration=

 # Enable/Disable Advertisement Monitor interleave scan for power saving.
 # 0: disable
 # 1: enable
 # Defaults to 0
 EnableAdvMonInterleaveScan=1

 [GATT]
 # GATT attribute cache.
 # Possible values:
 # always: Always cache attributes even for devices not paired, this is
 # recommended as it is best for interoperability, with more consistent
 # reconnection times and enables proper tracking of notifications for all
 # devices.
 # yes: Only cache attributes of paired devices.
 # no: Never cache attributes
 # Default: always
 Cache = yes

 # Minimum required Encryption Key Size for accessing secured characteristics.
 # Possible values: 0 and 7-16. 0 means don't care.
 # Defaults to 0
 #KeySize = 0

 # Exchange MTU size.
 # Possible values: 23-517
 # Defaults to 517
 #ExchangeMTU = 517

 # Number of ATT channels
 # Possible values: 1-5 (1 disables EATT)
 # Default to 3
 #Channels = 3

 [Policy]
 #
 # The ReconnectUUIDs defines the set of remote services that should try
 # to be reconnected to in case of a link loss (link supervision
 # timeout). The policy plugin should contain a sane set of values by
 # default, but this list can be overridden here. By setting the list to
 # empty the reconnection feature gets disabled.
 #ReconnectUUIDs=00001112-0000-1000-8000-00805f9b34fb,0000111f-0000-1000-8000-00805f9b34fb,0000110a-0000-1000-8000-00805f9b34fb

 # ReconnectAttempts define the number of attempts to reconnect after a link
 # lost. Setting the value to 0 disables reconnecting feature.
 ReconnectAttempts=3

 # ReconnectIntervals define the set of intervals in seconds to use in between
 # attempts.
 # If the number of attempts defined in ReconnectAttempts is bigger than the
 # set of intervals the last interval is repeated until the last attempt.
 ReconnectIntervals=5,10,20

 # AutoEnable defines option to enable all controllers when they are found.
 # This includes adapters present on start as well as adapters that are plugged
 # in later on. Defaults to 'false'.
 #AutoEnable=false

 [AdvMon]
 # Default RSSI Sampling Period. This is used when a client registers an
 # advertisement monitor and leaves the RSSISamplingPeriod unset.
 # Default: 0
 RSSISamplingPeriod=5
	# Copyright 2020 The Chromium OS Authors. All rights reserved.
	# Use of this source code is governed by a BSD-style license that can be
	# found in the LICENSE file.
	#
	# This file is installed in /etc and copied to /var before being used by
	# bluetoothd to allow run-time edit of DeviceID. Refer start_bluetoothd.sh for
	# details.

	[General]

	# Default adapter name
	# Defaults to 'BlueZ X.YZ'
	#Name = BlueZ

	# Default device class. Only the major and minor device class bits are
	# considered. Defaults to '0x000000'.
	#Class = 0x000100

	# How long to stay in discoverable mode before going back to non-discoverable
	# The value is in seconds. Default is 180, i.e. 3 minutes.
	# 0 = disable timer, i.e. stay discoverable forever
	#DiscoverableTimeout = 0

	# Always allow pairing even if there are no agent registered
	# Possible values: true, false
	# Default: false
	#AlwaysPairable = false

	# How long to stay in pairable mode before going back to non-discoverable
	# The value is in seconds. Default is 0.
	# 0 = disable timer, i.e. stay pairable forever
	#PairableTimeout = 0

	# Use vendor id source (assigner), vendor, product and version information for
	# DID profile support. The values are separated by ":" and assigner, VID, PID
	# and version.
	# Possible vendor id source values: bluetooth, usb (defaults to usb)
	#
	# For Chrome OS, the Device ID is <Google>/<chromeOS>/<versionNumber>
	# BlueZ startup script replaces 0000 part with the Chrome OS version number.
	DeviceID = bluetooth:00e0:c405:0000

	# Do reverse service discovery for previously unknown devices that connect to
	# us. For BR/EDR this option is really only needed for qualification since the
	# BITE tester doesn't like us doing reverse SDP for some test cases, for LE
	# this disables the GATT client functionally so it can be used in system which
	# can only operate as peripheral.
	# Defaults to 'true'.
	#ReverseServiceDiscovery = true

	# Enable name resolving after inquiry. Set it to 'false' if you don't need
	# remote devices name and want shorter discovery cycle. Defaults to 'true'.
	#NameResolving = true

	# Enable runtime persistency of debug link keys. Default is false which
	# makes debug link keys valid only for the duration of the connection
	# that they were created for.
	#DebugKeys = false

	# Restricts all controllers to the specified transport. Default value
	# is "dual", i.e. both BR/EDR and LE enabled (when supported by the HW).
	# Possible values: "dual", "bredr", "le"
	#ControllerMode = dual

	# Enables Multi Profile Specification support. This allows to specify if
	# system supports only Multiple Profiles Single Device (MPSD) configuration
	# or both Multiple Profiles Single Device (MPSD) and Multiple Profiles Multiple
	# Devices (MPMD) configurations.
	# Possible values: "off", "single", "multiple"
	#MultiProfile = off

	# Permanently enables the Fast Connectable setting for adapters that
	# support it. When enabled other devices can connect faster to us,
	# however the tradeoff is increased power consumptions. This feature
	# will fully work only on kernel version 4.1 and newer. Defaults to
	# 'false'.
	#FastConnectable = false

	# Default privacy setting.
	# Enables use of private address.
	# Possible values: "off", "device", "network"
	# "network" option not supported currently
	# Defaults to "off"
	# Privacy = off

	# Specify the policy to the JUST-WORKS repairing initiated by peer
	# Possible values: "never", "confirm", "always"
	# Defaults to "never"
	#JustWorksRepairing = never

	# How long to keep temporary devices around
	# The value is in seconds. Default is 30.
	# 0 = disable timer, i.e. never keep temporary devices
	#TemporaryTimeout = 30

	# Enables the device to issue an SDP request to update known services when
	# profile is connected. Defaults to true.
	#RefreshDiscovery = true

	[BR]
	# The following values are used to load default adapter parameters for BR/EDR.
	# BlueZ loads the values into the kernel before the adapter is powered if the
	# kernel supports the MGMT_LOAD_DEFAULT_PARAMETERS command. If a value isn't
	# provided, the kernel will be initialized to it's default value. The actual
	# value will vary based on the kernel version and thus aren't provided here.
	# The Bluetooth Core Specification should be consulted for the meaning and valid
	# domain of each of these values.

	# BR/EDR Page scan activity configuration
	PageScanType=1
	#PageScanInterval=
	#PageScanWindow=

	# BR/EDR Inquiry scan activity configuration
	#InquiryScanType=
	#InquiryScanInterval=
	#InquiryScanWindow=

	# BR/EDR Link supervision timeout
	#LinkSupervisionTimeout=

	# BR/EDR Page Timeout
	#PageTimeout=

	# BR/EDR Sniff Intervals
	#MinSniffInterval=
	#MaxSniffInterval=

	# EIR Max Name. This is the maximum length for the COMPLETE_NAME EIR section.
	# If the name length exceeds this size, a SHORT_NAME section is used.
	# Default: 48
	EirMaxNameLength = 180

	[LE]
	# The following values are used to load default adapter parameters for LE.
	# BlueZ loads the values into the kernel before the adapter is powered if the
	# kernel supports the MGMT_LOAD_DEFAULT_PARAMETERS command. If a value isn't
	# provided, the kernel will be initialized to it's default value. The actual
	# value will vary based on the kernel version and thus aren't provided here.
	# The Bluetooth Core Specification should be consulted for the meaning and valid
	# domain of each of these values.

	# LE advertisement interval (used for legacy advertisement interface only)
	MinAdvertisementInterval=290
	MaxAdvertisementInterval=290
	#MultiAdvertisementRotationInterval=

	# LE scanning parameters used for passive scanning supporting auto connect
	# scenarios
	# 37.5ms (5 * 7.5ms) / 367.5ms (49 * 7.5ms) = 10% duty cycle.
	ScanIntervalAutoConnect=588
	ScanWindowAutoConnect=60

	# LE scanning parameters used for passive scanning supporting wake from suspend
	# scenarios
	#ScanIntervalSuspend=
	#ScanWindowSuspend=

	# LE scanning parameters used for active scanning supporting discovery
	# proceedure
	ScanIntervalDiscovery=36
	ScanWindowDiscovery=18

	# LE scanning parameters used for passive scanning supporting the advertisement
	# monitor Apis
	ScanIntervalAdvMonitor=40
	ScanWindowAdvMonitor=20

	# LE scanning parameters used for connection establishment.
	#ScanIntervalConnect=
	#ScanWindowConnect=

	# LE default connection parameters. These values are superceeded by any
	# specific values provided via the Load Connection Parameters interface
	#MinConnectionInterval=
	#MaxConnectionInterval=
	#ConnectionLatency=
	ConnectionSupervisionTimeout=200
	Autoconnecttimeout=5000

	# Scan duration during interleaving scan. Only used when scanning for ADV
	# monitors. The units are msec.
	# Default: 300
	#AdvMonAllowlistScanDuration=
	# Default: 500
	#AdvMonNoFilterScanDuration=

	# Enable/Disable Advertisement Monitor interleave scan for power saving.
	# 0: disable
	# 1: enable
	# Defaults to 0
	EnableAdvMonInterleaveScan=1

	[GATT]
	# GATT attribute cache.
	# Possible values:
	# always: Always cache attributes even for devices not paired, this is
	# recommended as it is best for interoperability, with more consistent
	# reconnection times and enables proper tracking of notifications for all
	# devices.
	# yes: Only cache attributes of paired devices.
	# no: Never cache attributes
	# Default: always
	Cache = yes

	# Minimum required Encryption Key Size for accessing secured characteristics.
	# Possible values: 0 and 7-16. 0 means don't care.
	# Defaults to 0
	#KeySize = 0

	# Exchange MTU size.
	# Possible values: 23-517
	# Defaults to 517
	#ExchangeMTU = 517

	# Number of ATT channels
	# Possible values: 1-5 (1 disables EATT)
	# Default to 3
	#Channels = 3

	[Policy]
	#
	# The ReconnectUUIDs defines the set of remote services that should try
	# to be reconnected to in case of a link loss (link supervision
	# timeout). The policy plugin should contain a sane set of values by
	# default, but this list can be overridden here. By setting the list to
	# empty the reconnection feature gets disabled.
	#ReconnectUUIDs=00001112-0000-1000-8000-00805f9b34fb,0000111f-0000-1000-8000-00805f9b34fb,0000110a-0000-1000-8000-00805f9b34fb

	# ReconnectAttempts define the number of attempts to reconnect after a link
	# lost. Setting the value to 0 disables reconnecting feature.
	ReconnectAttempts=3

	# ReconnectIntervals define the set of intervals in seconds to use in between
	# attempts.
	# If the number of attempts defined in ReconnectAttempts is bigger than the
	# set of intervals the last interval is repeated until the last attempt.
	ReconnectIntervals=5,10,20

	# AutoEnable defines option to enable all controllers when they are found.
	# This includes adapters present on start as well as adapters that are plugged
	# in later on. Defaults to 'false'.
	#AutoEnable=false

	[AdvMon]
	# Default RSSI Sampling Period. This is used when a client registers an
	# advertisement monitor and leaves the RSSISamplingPeriod unset.
	# Default: 0
	RSSISamplingPeriod=5