1.\" Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com> 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd June 14, 2002 28.Dt NG_UBT 4 29.Os 30.Sh NAME 31.Nm ng_ubt 32.Nd Netgraph node type that is also a driver for Bluetooth USB devices 33.Sh SYNOPSIS 34.In sys/types.h 35.In ng_ubt.h 36.Sh DESCRIPTION 37The 38.Nm ubt 39node type is both a persistent Netgraph node type and a driver for 40Bluetooth USB devices. 41It implements a Bluetooth USB transport layer 42as per chapter H2 of the Bluetooth Specification Book v1.1. 43A new node is created when supported USB device is plugged. 44.Pp 45The node has a single hook called 46.Dv hook . 47Incoming bytes received on the device are re-assembled into HCI frames 48(according to the length). 49Full HCI frames are sent out on the hook. 50The node will add HCI frame indicator if device did not send it. 51HCI frames received on 52.Dv hook 53are transmitted out. 54The node will drop HCI frame indicator unless device 55requires it to be present. 56.Sh HOOKS 57This node type supports the following hooks: 58.Bl -tag -width indent 59.It Dv hook 60single HCI frame contained in single 61.Vt mbuf 62structure. 63.El 64.Sh CONTROL MESSAGES 65This node type supports the generic control messages, plus the following: 66.Bl -tag -width indent 67.It Dv NGM_UBT_NODE_GET_DEBUG 68Returns an integer containing the current debug level for the node. 69.It Dv NGM_UBT_NODE_SET_DEBUG 70This command takes an integer argument and sets current debug level 71for the node. 72.It Dv NGM_UBT_NODE_GET_QLEN 73This command takes a parameter that specifies queue number and returns 74current maximal length of the queue for the node. 75.It Dv NGM_UBT_NODE_SET_QLEN 76This command takes two parameters that specify queue number and maximum 77length of the queue and sets maximal length of the queue for the node. 78.It Dv NGM_UBT_NODE_GET_STAT 79Returns various statistic information for the node, such as: number of 80bytes (frames) sent, number of bytes (frames) received and number of 81input (output) errors. 82.It Dv NGM_UBT_NODE_RESET_STAT 83Reset all statistic counters to zero. 84.El 85.Sh SHUTDOWN 86This node shuts down when the corresponding USB device is un-plugged. 87.Sh BUGS 88Isochronous USB transfers are probably broken. 89It means that USB device probably will not be able to transfer SCO data (voice). 90Driver does not support firmware upgrade procedure. 91USB interrupt transfers are implemented as bulk-in transfers (not really a bug). 92.Sh SEE ALSO 93.Xr netgraph 4 , 94.Xr usb 4 , 95.Xr ngctl 8 96.Sh HISTORY 97The 98.Nm ubt 99node type was implemented in 100.Fx 5.0 . 101.Sh AUTHORS 102.An Maksim Yevmenkin Aq m_evmenkin@yahoo.com 103