'\" te
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.TH MODLINKAGE 9S "Sep 18, 1992"
.SH NAME
modlinkage \- module linkage structure
.SH SYNOPSIS
.nf
#include <sys/modctl.h>
.fi

.SH INTERFACE LEVEL
illumos DDI specific (illumos DDI)
.SH DESCRIPTION
The \fBmodlinkage\fR structure is provided by the module writer to the routines
that install, remove, and retrieve information from a module. See
\fB_init\fR(9E), \fB_fini\fR(9E), and \fB_info\fR(9E).
.SH STRUCTURE MEMBERS
.in +2
.nf
int    ml_rev
void   *ml_linkage[4];
.fi
.in -2

.sp
.ne 2
.na
\fB\fBml_rev\fR \fR
.ad
.RS 15n
Is the revision of the loadable modules system.  This must have the value
\fBMODREV_1\fR .
.RE

.sp
.ne 2
.na
\fB\fBml_linkage\fR \fR
.ad
.RS 15n
Is a null-terminated array of pointers to linkage structures. Driver modules
have only one linkage structure.
.RE

.SH SEE ALSO
.BR add_drv (8),
.BR _fini (9E),
.BR _info (9E),
.BR _init (9E),
.BR modldrv (9S),
.BR modlstrmod (9S)
.sp
.LP
\fIWriting Device Drivers\fR