3 .\" Copyright (c) 2000 Alexander Langer
5 .\" All rights reserved.
7 .\" This program is free software.
9 .\" Redistribution and use in source and binary forms, with or without
10 .\" modification, are permitted provided that the following conditions
12 .\" 1. Redistributions of source code must retain the above copyright
13 .\" notice, this list of conditions and the following disclaimer.
14 .\" 2. Redistributions in binary form must reproduce the above copyright
15 .\" notice, this list of conditions and the following disclaimer in the
16 .\" documentation and/or other materials provided with the distribution.
18 .\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
19 .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 .\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
22 .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 .Nd kernel module declaration macro
41 .Fn DECLARE_MODULE "name" "moduledata_t data" "sub" "order"
45 macro declares a generic kernel module.
46 It is used to register the module with the system, using the
50 is usually used within other macros, such as
54 .Xr SYSCALL_MODULE 9 .
55 Of course, it can also be called directly, for example in
56 order to implement dynamic sysctls.
58 The arguments it expects are:
59 .Bl -tag -width indent
61 The module name, which will be used in the
63 call to identify the module.
67 structure, which contains two main items, the official name of the
68 module name, which will be used in the
70 structure and a pointer to the event handler function of type
73 An argument directed to the
76 Valid values for this are contained in the
81 and specify the type of system startup interfaces.
86 here for example, since these modules contain a driver for a device.
87 For kernel modules that are loaded at runtime, a value of
93 It represents the KLDs order of initialization within the subsystem.
94 Valid values are defined in the
95 .Vt sysinit_elem_order
101 .Xr DRIVER_MODULE 9 ,
105 .Pa /usr/include/sys/kernel.h ,
106 .Pa /usr/share/examples/kld
109 This manual page was written by
110 .An Alexander Langer Aq alex@FreeBSD.org ,
111 inspired by the KLD Facility Programming Tutorial by
112 .An Andrew Reiter Aq arr@watson.org .