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+.\" $Id: lsvfs.1,v 1.1 1994/09/22 01:25:56 wollman Exp $
+.\" Garrett A. Wollman, October 1994
+.\" This file is in the public domain.
+.\"
+.Dd October 17, 1994
+.Dt LSDEV 1
+.Os
+.Sh NAME
+.Nm lsdev
+.Nd list configured devices
+.Sh SYNOPSIS
+.Nm lsdev
+.Op Fl t Ar type
+.Op Fl v
+.Op Ar class Ns Op unit
+.Sh DESCRIPTION
+The
+.Nm lsdev
+utility lists devices configured in the current system, in a
+machine-dependent manner.  The
+.Fl t
+flag can be used to restrict the listing to a specific 
+.Ar type
+of device;
+the types available vary from machine to machine.  (Specifying an
+invalid type will cause a list of valid types to be printed.)  The
+.Fl v
+flag requests more verbose output.  The optional
+.Ar class
+argument requests information on a particular class of devices (e.g.,
+.Dq Li wdc
+or
+.No Do Li ie Dc Ns ).
+If no
+.Ar unit
+is specified, all units of the specified class will be listed.
+.Pp
+The
+.Xr sysctl 3
+mechanism is used to retrieve information from the kernel about which
+devices are configured.
+.Sh FILES
+.Bl -tag -width <machine/devconf.h>
+.It Aq sys/devconf.h
+defines the structure examined by
+.Nm
+.It Aq machine/devconf.h
+defines the machine-dependent parts of the structure, including the
+supported device type names
+.El
+.Sh SEE ALSO
+.\" .Xr chdev 8
+.Xr sysctl 3
+.Sh BUGS
+Not all devices have the proper support implmented yet.
+.Sh HISTORY
+An
+.Nm
+comand appeared in
+.Tn FreeBSD
+2.0.