1.\" -*- nroff -*- 2.\" 3.\" Copyright (c) 2001 Alexander Langer 4.\" 5.\" All rights reserved. 6.\" 7.\" This program is free software. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 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. 17.\" 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. 28.\" 29.Dd January 11, 2005 30.Dt MODULE_DEPEND 9 31.Os 32.Sh NAME 33.Nm MODULE_DEPEND 34.Nd set kernel module dependencies 35.Sh SYNOPSIS 36.In sys/param.h 37.In sys/module.h 38.Fn MODULE_DEPEND "name" "moddepend" "int minversion" "int prefversion" "int maxversion" 39.Sh DESCRIPTION 40The 41.Fn MODULE_DEPEND 42macro sets a dependency on another kernel module with name 43.Fa moddepend , 44which has registered 45its version with 46.Fn MODULE_VERSION . 47.Pp 48The 49.Fn MODULE_DEPEND 50macro provides hints to the kernel 51.Xr loader 8 52and to the kernel linker to ensure that the named dependency is loaded 53prior to the existing module. 54It does not change or dictate the order in which modules are 55initialized at runtime. 56.Pp 57Three versions must be specified for 58.Fa moddepend : 59.Bl -tag -width ".Fa prefversion" 60.It Fa minversion 61The minimum version on which the current module can depend. 62.It Fa maxversion 63The maximum version on which the current module can depend. 64.It Fa prefversion 65The preferred version on which the current module can depend. 66.El 67.Sh EXAMPLES 68.Bd -literal 69MODULE_DEPEND(foo, bar, 1, 3, 4); 70.Ed 71.Sh SEE ALSO 72.Xr DECLARE_MODULE 9 , 73.Xr module 9 , 74.Xr MODULE_VERSION 9 75.Sh AUTHORS 76.An -nosplit 77This manual page was written by 78.An Alexander Langer Aq Mt alex@FreeBSD.org . 79