xref: /freebsd/usr.sbin/devinfo/devinfo.8 (revision d20241a618272d81c5ca81d464ad9160743f72f6)
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3.\" Copyright (c) 2002 Hiten Pandya
4.\" Copyright (c) 2002 Robert N. M. Watson
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28.\" $FreeBSD$
29.\"
30.Dd November 28, 2005
31.Os
32.Dt DEVINFO 8
33.Sh NAME
34.Nm devinfo
35.Nd print information about system device configuration
36.Sh SYNOPSIS
37.Nm
38.Op Fl rv
39.Nm
40.Fl u
41.Sh DESCRIPTION
42The
43.Nm
44utility, without any arguments, shows the hierarchy of devices available
45in the system, starting from the
46.Dq nexus
47device.
48.Pp
49The following options are accepted.
50.Bl -tag -width indent
51.It Fl r
52Causes hardware resource information (such as IRQ, I/O ports, I/O memory
53addresses) to be also listed, under each device that has reserved those resources.
54.It Fl u
55Displays the same information as with
56.Fl r
57but sorts by resource type rather than by device, allowing to review the
58set of system resources by usage and available resources.
59I.e., it lists all
60the IRQ consumers together.
61.It Fl v
62Display all devices in the driver tree, not just those that are attached or
63busy.
64Without this flag, only those devices that have attached are reported.
65.El
66.Sh SEE ALSO
67.Xr systat 1 ,
68.Xr devinfo 3 ,
69.Xr iostat 8 ,
70.Xr pciconf 8 ,
71.Xr pnpinfo 8 ,
72.Xr vmstat 8 ,
73.Xr devclass 9 ,
74.Xr device 9
75.Sh AUTHORS
76.An Mike Smith Aq msmith@FreeBSD.org
77