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.\" $FreeBSD$ 30.\" 31.Dd January 11, 2005 32.Dt MODULE_DEPEND 9 33.Os 34.Sh NAME 35.Nm MODULE_DEPEND 36.Nd set kernel module dependencies 37.Sh SYNOPSIS 38.In sys/param.h 39.In sys/module.h 40.Fn MODULE_DEPEND "name" "moddepend" "int minversion" "int prefversion" "int maxversion" 41.Sh DESCRIPTION 42The 43.Fn MODULE_DEPEND 44macro sets a dependency on another kernel module with name 45.Fa moddepend , 46which has registered 47its version with 48.Fn MODULE_VERSION . 49.Pp 50The 51.Fn MODULE_DEPEND 52macro provides hints to the kernel 53.Xr loader 8 54and to the kernel linker to ensure that the named dependency is loaded 55prior to the existing module. 56It does not change or dictate the order in which modules are 57initialized at runtime. 58.Pp 59Three versions must be specified for 60.Fa moddepend : 61.Bl -tag -width ".Fa prefversion" 62.It Fa minversion 63The minimum version on which the current module can depend. 64.It Fa maxversion 65The maximum version on which the current module can depend. 66.It Fa prefversion 67The preferred version on which the current module can depend. 68.El 69.Sh EXAMPLES 70.Bd -literal 71MODULE_DEPEND(foo, bar, 1, 3, 4); 72.Ed 73.Sh SEE ALSO 74.Xr DECLARE_MODULE 9 , 75.Xr module 9 , 76.Xr MODULE_VERSION 9 77.Sh AUTHORS 78.An -nosplit 79This manual page was written by 80.An Alexander Langer Aq Mt alex@FreeBSD.org . 81