82650adfef
Use recent best practices for Copyright form at the top of the license: 1. Remove all the All Rights Reserved clauses on our stuff. Where we piggybacked others, use a separate line to make things clear. 2. Use "Netflix, Inc." everywhere. 3. Use a single line for the copyright for grep friendliness. 4. Use date ranges in all places for our stuff. Approved by: Netflix Legal (who gave me the form), adrian@ (pmc files)
97 lines
3.1 KiB
Groff
97 lines
3.1 KiB
Groff
.\"
|
|
.\" Copyright (c) 2017 Netflix, Inc.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd February 16, 2018
|
|
.Dt DEVMATCH 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm devmatch
|
|
.Nd print information about unattached devices
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl adhpuv
|
|
.Op Fl -all
|
|
.Op Fl -dump
|
|
.Op Fl -hints Ar file
|
|
.Op Fl -nomatch Ar event
|
|
.Op Fl -unbound
|
|
.Op Fl -verbose
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility, without any arguments, prints all the kernel modules it has
|
|
found for all the unattached, enabled devices in the system.
|
|
.Bl -tag -width 20m
|
|
.It Fl a Fl -all
|
|
Include all devices, not just the ones that are unattached.
|
|
.It Fl d Fl -dump
|
|
Produce a human readable dump of the
|
|
.Pa linker.hints
|
|
file.
|
|
.It Fl h Fl -hints Ar file
|
|
Use the named
|
|
.Ar file
|
|
instead of
|
|
.Pa linker.hints
|
|
guessed from the current module load path.
|
|
.It Fl p Fl -nomatch Ar event
|
|
Parse and use a standard NOMATCH event from
|
|
.Xr devd 8
|
|
for matching instead of searching the device tree.
|
|
.It Fl u Fl -unbound
|
|
Attempt to produce a list of those drivers with PNP info whose driver
|
|
tables with that PNP info can't be found.
|
|
.It Fl v Fl -verbose
|
|
Produce more verbose output.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr devinfo 8 ,
|
|
.Xr MODULE_PNP_INFO 9
|
|
.Sh BUGS
|
|
The kernel has hints in it, but we exclude it from the list of modules
|
|
to suggest for unmatched devices.
|
|
We exclude it when suggesting drivers, but include it when looking for
|
|
unbound devices or producing a full dump of
|
|
.Pa linker.hints .
|
|
This can be confusing.
|
|
.Pp
|
|
Some modules are hard links in
|
|
.Pa /boot/kernel
|
|
and will be reported twice.
|
|
.Pp
|
|
The PNP string's attributes are evaluated once per PNP entry on that
|
|
bus rather than once.
|
|
.Pp
|
|
The term PNP is overloaded in FreeBSD.
|
|
It means, generically, the identifying data the bus provides about a
|
|
device.
|
|
While this include old ISA PNP identifiers, it also includes the
|
|
logical equivalent in USB, PCI, and others.
|
|
.Pp
|
|
Many drivers currently lack proper PNP table decorations and need to
|
|
be updated.
|
|
.Sh AUTHORS
|
|
.An Warner Losh Aq Mt imp@FreeBSD.org
|