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149 lines
4.3 KiB
Groff
149 lines
4.3 KiB
Groff
.\" $NetBSD: usbd.8,v 1.2 1998/07/13 11:01:50 augustss Exp $
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.\" Copyright (c) 1998 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" Author: Lennart Augustsson
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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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND 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 THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND 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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.\" $FreeBSD$
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.\"
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.Dd July 12, 1998
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.Dt USBD 8
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.Os
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.Sh NAME
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.Nm usbd
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.Nd supervise USB attach/detach
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.Sh SYNOPSIS
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.Nm
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.Op Fl c Ar configfile
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.Op Fl d
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.Op Fl e
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.Op Fl f Ar device
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.Op Fl n
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.Op Fl t Ar timeout
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.Op Fl v
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.Sh DESCRIPTION
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.Nm
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handles the USB device attachment and detachment.
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It does two things.
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Through opening the
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.Pa /dev/usb0 ,
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.Pa /dev/usb1 ,
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etc. devices, it enables the kernel to do handle change requests from
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attached hubs.
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This functionality will be removed when the kernel has
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kernel threads.
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The (multiple)
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.Fl f Ar device
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command line options specify which controllers it should handle.
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Normally this option is not needed.
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.Pp
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If the
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.Dq usb ,
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.Dq ohci
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and
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.Dq uhci
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modules are not loaded, it will load them automatically.
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.Pp
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The second part is the handling of the attachment and detachment of USB
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devices.
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The device
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.Pa /dev/usb
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is opened and events are read from it.
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Whenever a device is attached or
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detached the list of actions read from
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.Pa /etc/usbd.conf
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are searched for a matching entry.
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If found, the corresponding action is
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executed.
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.Pp
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The command line options are as follows:
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.Bl -tag -width Ds
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.It Fl c Ar filename
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Name of configuration file.
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The default is
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.Pa /etc/usbd.conf.
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.It Fl d
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Enable debugging to the standard output,
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and do not disassociate from the controlling terminal.
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.It Fl e
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Do one device tree exploration, no event queue handling and then exit.
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.It Fl f Ar device
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Specify the pathname of a USB controller device file.
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The flag may be repeated to watch more than one USB controller.
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The default is
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.Pa /dev/usb0
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through
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.Pa /dev/usb3 .
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Do not specify the device
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.Pa /dev/usb
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here.
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It is used for events only.
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.It Fl n
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Do not handle the event queue on /dev/usb.
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.It Fl t Ar timeout
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Set the timeout interval (in seconds) before an exploration happens
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without being triggered by a connect or disconnect.
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A timeout of 0 means that there is no timeout. The default is 30.
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.It Fl v
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Be verbose.
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Repeating the flag makes
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.Nm usbd
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more verbose.
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.El
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.Sh FILES
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.Bl -tag -width /etc/usbd.conf -compact
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.It Pa /etc/usbd.conf
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.It /dev/usb
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.It /dev/usb0
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.It /dev/usb1
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.It etc.
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.Sh SEE ALSO
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.Xr usb 4 ,
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.Xr usbd.conf 5
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.Sh HISTORY
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The
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.Nm
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command appeared in
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.Nx 4.0 .
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.Sh AUTHORS
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The
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.Nm
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driver was written by
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.An Lennart Augustsson Aq augustss@carlstedt.se
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for the
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.Nx
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project.
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The event queue handling in
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.Nm usbd
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was added by
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.An Nick Hibma Aq n_hibma@freebsd.org .
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