186d7f5d3SJohn Marino.\" Copyright (c) 1998 Doug Rabson 286d7f5d3SJohn Marino.\" 386d7f5d3SJohn Marino.\" All rights reserved. 486d7f5d3SJohn Marino.\" 586d7f5d3SJohn Marino.\" This program is free software. 686d7f5d3SJohn Marino.\" 786d7f5d3SJohn Marino.\" Redistribution and use in source and binary forms, with or without 886d7f5d3SJohn Marino.\" modification, are permitted provided that the following conditions 986d7f5d3SJohn Marino.\" are met: 1086d7f5d3SJohn Marino.\" 1. Redistributions of source code must retain the above copyright 1186d7f5d3SJohn Marino.\" notice, this list of conditions and the following disclaimer. 1286d7f5d3SJohn Marino.\" 2. Redistributions in binary form must reproduce the above copyright 1386d7f5d3SJohn Marino.\" notice, this list of conditions and the following disclaimer in the 1486d7f5d3SJohn Marino.\" documentation and/or other materials provided with the distribution. 1586d7f5d3SJohn Marino.\" 1686d7f5d3SJohn Marino.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR 1786d7f5d3SJohn Marino.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1886d7f5d3SJohn Marino.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1986d7f5d3SJohn Marino.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, 2086d7f5d3SJohn Marino.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2186d7f5d3SJohn Marino.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2286d7f5d3SJohn Marino.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2386d7f5d3SJohn Marino.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2486d7f5d3SJohn Marino.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2586d7f5d3SJohn Marino.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2686d7f5d3SJohn Marino.\" 2786d7f5d3SJohn Marino.\" $FreeBSD: src/share/man/man9/devclass.9,v 1.4.2.3 2001/08/17 13:08:54 ru Exp $ 2886d7f5d3SJohn Marino.\" $DragonFly: src/share/man/man9/devclass.9,v 1.3 2004/06/01 11:36:53 hmp Exp $ 2986d7f5d3SJohn Marino.\" 3086d7f5d3SJohn Marino.Dd June 16, 1998 3186d7f5d3SJohn Marino.Dt DEVCLASS 9 3286d7f5d3SJohn Marino.Os 3386d7f5d3SJohn Marino.Sh NAME 3486d7f5d3SJohn Marino.Nm devclass 3586d7f5d3SJohn Marino.Nd object representing a class of devices 3686d7f5d3SJohn Marino.Sh SYNOPSIS 3786d7f5d3SJohn Marino.Vt typedef struct devclass *devclass_t ; 3886d7f5d3SJohn Marino.Sh DESCRIPTION 3986d7f5d3SJohn MarinoThe 4086d7f5d3SJohn Marino.Dv devclass 4186d7f5d3SJohn Marinoobject has two main functions in the system. The first is to manage 4286d7f5d3SJohn Marinothe allocation of unit numbers for device instances and the second is 4386d7f5d3SJohn Marinoto hold the list of device drivers for a particular bus type. 4486d7f5d3SJohn MarinoEach 4586d7f5d3SJohn Marino.Dv devclass 4686d7f5d3SJohn Marinohas a name and there cannot be two devclasses with the same name. 4786d7f5d3SJohn MarinoThis ensures that unique unit numbers are allocated to device 4886d7f5d3SJohn Marinoinstances. 4986d7f5d3SJohn Marino.Sh SEE ALSO 5086d7f5d3SJohn Marino.Xr devclass_add_driver 9 , 5186d7f5d3SJohn Marino.Xr devclass_delete_driver 9 , 5286d7f5d3SJohn Marino.Xr devclass_find 9 , 5386d7f5d3SJohn Marino.Xr devclass_find_driver 9 , 5486d7f5d3SJohn Marino.Xr devclass_get_device 9 , 5586d7f5d3SJohn Marino.Xr devclass_get_devices 9 , 5686d7f5d3SJohn Marino.Xr devclass_get_maxunit 9 , 5786d7f5d3SJohn Marino.Xr devclass_get_name 9 , 5886d7f5d3SJohn Marino.Xr devclass_get_softc 9 , 5986d7f5d3SJohn Marino.Xr device 9 , 6086d7f5d3SJohn Marino.Xr driver 9 6186d7f5d3SJohn Marino.Sh AUTHORS 6286d7f5d3SJohn MarinoThis man page was written by 6386d7f5d3SJohn Marino.An Doug Rabson . 64