a5c89047c0
NetBSD Foundation Membership still pending.) This stack was written by Iain under sponsorship from Itronix Inc. The stack includes support for rfcomm networking (networking via your bluetooth enabled cell phone), hid devices (keyboards/mice), and headsets. Drivers for both PCMCIA and USB bluetooth controllers are included.
96 lines
3.4 KiB
Groff
96 lines
3.4 KiB
Groff
.\" $NetBSD: ubt.4,v 1.1 2006/06/19 15:44:36 gdamore Exp $
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.\"
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.\" Copyright (c) 2006 Itronix Inc.
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.\" All rights reserved.
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.\"
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.\" Written by Iain Hibbert for Itronix Inc.
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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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.\" 3. The name of Itronix Inc. may not be used to endorse
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.\" or promote products derived from this software without specific
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.\" prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
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.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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.\" ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd Apr 20, 2005
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.Dt UBT 4
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.Os
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.Sh NAME
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.Nm ubt
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.Nd USB Bluetooth driver
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.Sh SYNOPSIS
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.Cd "ubt* at uhub? port ? configuration ? interface ?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for USB Bluetooth dongles
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to the Bluetooth protocol stack.
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.Pp
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USB Bluetooth dongles provide two interfaces, both of which the
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.Nm
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driver claims. The second interface is used for Isochronous data and will have
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several alternate configurations regarding bandwidth consumption, which can be
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set using the hw.ubtN.config
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.Xr sysctl 8
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variable. The number of alternate configurations is indicated by the value
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in the hw.ubtN.alt_config variable, and the isoc frame size for the current
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configuration is shown in the hw.ubtN.sco_rxsize, and hw.ubtN.sco_txsize
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variables.
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.Pp
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By default, configuration 0 is selected, which means that no bandwidth
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is used on the Isochronous interface and no SCO data can be sent. Consult
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the Bluetooth USB specification at https://www.bluetooth.org/ for complete
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instructions on setting bandwidth consumption. The following extract may be
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useful as a general guidance though details may differ between manufacturers.
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.Pp
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.Bl -tag -compact -width XXX
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.It 0
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No active voice channels
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.It 1
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One voice channel with 8-bit encoding
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.It 2
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Two voice channels with 8-bit encoding, or One voice channel with 16-bit encoding.
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.It 3
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Three voice channels with 8-bit encoding
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.It 4
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Two voice channels with 16-bit encoding
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.It 5
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Three voice channels with 16-bit encoding
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.El
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.Sh SEE ALSO
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.Xr bluetooth 4 ,
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.Xr uhub 4 ,
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.Xr ubtbcmfw 4 ,
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.Xr sysctl 8
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.Sh HISTORY
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This
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.Nm
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device driver was originally a character device written by
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.An "David Sainty"
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and
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.An "Lennart Augustsson" .
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It was rewritten to support socket based Bluetooth access for
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.Nx 4.0
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by
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.An "Iain Hibbert" .
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.Sh BUGS
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The Isochronous configuration can only be changed when the device is not
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marked up.
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