79a100e28e
The ng_h4 module was disconnected 13 years ago when the tty later was locked by Ed. It completely fails to compile, and has a number of false positives for Giant use. Remove it for lack of interest. Bluetooth has largely (completely?) moved on from bluetooth over UART transport. OK'd by: emax Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D31846
185 lines
5.9 KiB
Groff
185 lines
5.9 KiB
Groff
.\" Copyright (c) 2005 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd September 29, 2021
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.Dt BLUETOOTH.DEVICE.CONF 5
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.Os
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.Sh NAME
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.Nm bluetooth.device.conf
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.Nd Bluetooth device configuration file
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.Sh DESCRIPTION
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Bluetooth device configuration framework provides ability to adjust certain
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Bluetooth device parameters on per-device basis.
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.Pp
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Bluetooth device configuration files are plain text files that should conform
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to basic
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.Xr sh 1
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syntax.
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Even though Bluetooth device are not exactly shell scripts,
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they are parsed and passed through shell
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.Ic eval
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command.
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This makes it possible to use various shell tricks in the Bluetooth device
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configuration files.
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.Pp
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The
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.Pa /etc/rc.d/bluetooth
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script is used to start and stop Bluetooth devices.
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This script is not executed by default when system boots.
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It is called by
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.Xr devd 8
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in response to Bluetooth device arrival and departure events.
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It is possible to execute this script by hand if required.
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The script accepts Bluetooth device driver name as an extra parameter.
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.Pp
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The system wide Bluetooth device configuration file is called
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.Pa /etc/defaults/\:bluetooth.device.conf .
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Configuration parameters set in the system wide Bluetooth device configuration
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file apply to every Bluetooth device connected to the system.
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.Pp
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Configuration parameters overrides for the specific Bluetooth device
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should be placed in the
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.Pa /etc/bluetooth/ Ns Ar DEVICE_DRIVER_NAME Ns Pa .conf
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file.
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Where
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.Ar DEVICE_DRIVER_NAME
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is the device driver name of the Bluetooth device.
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.Pp
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The following list provides a name and short description for each
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variable that can be set in a Bluetooth device configuration file.
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.Bl -tag -width indent-two
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.It Va authentication_enable
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.Pq Vt bool
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The
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.Va authentication_enable
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parameter controls if the device requires to authenticate the remote device
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at connection setup.
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If set to
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.Dq Li YES ,
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the device will try to authenticate the other device at connection setup.
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Bluetooth authentication requests are handled by
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.Xr hcsecd 8
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daemon.
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.It Va class
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.Pq Vt str
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The
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.Va class
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parameter is used to indicate the capabilities of the device to
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other devices.
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For more details see
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.Dq Assigned Numbers - Bluetooth Baseband
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document.
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.It Va connectable
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.Pq Vt bool
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The
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.Va connectable
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parameter controls whether or not the device should periodically scan for
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page attempts from other devices.
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If set to
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.Dq Li YES ,
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the device will periodically scan for page attempts from other devices.
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.It Va discoverable
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.Pq Vt bool
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The
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.Va discoverable
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parameter controls whether or not the device should periodically scan for
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inquiry requests from other devices.
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If set to
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.Dq Li YES ,
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the device will periodically scan for inquiry requests from other devices.
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.It Va encryption_mode
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.Pq Vt str
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The
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.Va encryption_mode
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parameter controls if the device requires encryption to the remote device
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at connection setup.
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At connection setup, only the devices with the
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.Va authentication_enable
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parameter enabled and
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.Va encryption_mode
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parameter enabled will try to encrypt the connection to the other device.
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Possible values are
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.Dq Li NONE
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encryption disabled,
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.Dq Li P2P
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encryption for only point-to-point packets,
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or
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.Dq Li ALL
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encryption for both point-to-point and broadcast packets.
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.It Va hci_debug_level
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.Pq Vt int
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HCI node debug level.
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Higher values mean more verbose output.
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.It Va l2cap_debug_level
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.Pq Vt int
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L2CAP node debug level.
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Higher values mean more verbose output.
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.It Va local_name
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.Pq Vt str
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The
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.Va local_name
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parameter provides the ability to modify the user friendly name for the device.
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.It Va role_switch
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.Pq Vt bool
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The
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.Va role_switch
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parameter controls whether the local device should perform role switch.
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By default, if role switch is supported, the local device will try to perform
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role switch and become Master on incoming connection.
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Some devices do not support role switch and thus incoming connections from
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such devices will fail.
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If
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.Va role switch
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is disabled then accepting device will remain Slave.
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.El
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.Sh FILES
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.Bl -tag -width ".Pa /etc/defaults/bluetooth.device.conf" -compact
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.It Pa /etc/defaults/bluetooth.device.conf
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.It Pa /etc/rc.d/bluetooth
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.El
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.Sh EXAMPLES
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The
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.Pa /etc/bluetooth/ubt0.conf
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file should be used to specify configuration parameters overrides for the
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first USB Bluetooth device
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(device driver name is
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.Li ubt0 ) .
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.Pp
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The
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.Pa /etc/bluetooth/ubt1.conf
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file should be used to specify configuration parameters overrides for the
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second USB Bluetooth device.
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.Sh SEE ALSO
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.Xr ng_hci 4 ,
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.Xr ng_l2cap 4 ,
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.Xr ng_ubt 4 ,
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.Xr devd 8 ,
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.Xr hccontrol 8 ,
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.Xr hcsecd 8 ,
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.Xr l2control 8
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.Sh AUTHORS
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.An Maksim Yevmenkin Aq Mt m_evmenkin@yahoo.com
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