128 lines
3.3 KiB
Groff
128 lines
3.3 KiB
Groff
.\"
|
|
.\" Copyright (c) 1999 Chris Costello
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd September 28, 2000
|
|
.Dt MODSTAT 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm modstat
|
|
.Nd get status of kernel module
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.Fd #include <sys/param.h>
|
|
.Fd #include <sys/module.h>
|
|
.Ft int
|
|
.Fn modstat "int modid" "struct module_stat *stat"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn modstat
|
|
function writes the info for the kernel module referred to by
|
|
.Fa modid
|
|
into
|
|
.Fa stat .
|
|
.Bd -literal
|
|
struct module_stat {
|
|
int version; /* set to sizeof(module_stat) */
|
|
char name[MAXPATHLEN];
|
|
int refs;
|
|
int id;
|
|
modspecific_t data;
|
|
};
|
|
typedef union modspecific {
|
|
int intval;
|
|
u_int u_intval;
|
|
long longval;
|
|
u_long u_longval;
|
|
} modspecific_t;
|
|
.Ed
|
|
.Pp
|
|
.Bl -tag -width XXXaddress
|
|
.It version
|
|
This field is set to the size of the structure mentioned above by the code
|
|
calling
|
|
.Fn modstat ,
|
|
and not
|
|
.Fn modstat
|
|
itself.
|
|
.It name
|
|
The name of the module referred to by
|
|
.Fa modid .
|
|
.It refs
|
|
The number of modules referenced by
|
|
.Fa modid .
|
|
.It id
|
|
The id of the module specified in
|
|
.Fa modid .
|
|
.It data
|
|
Module specific data.
|
|
.El
|
|
.Sh RETURN VALUES
|
|
.Rv -std modstat
|
|
.Sh ERRORS
|
|
The information for the module referred to by
|
|
.Fa modid
|
|
is filled into the structure pointed to by
|
|
.Fa stat
|
|
unless:
|
|
.Bl -tag -width Er
|
|
.It Bq Er ENOENT
|
|
The module was not found (probably not loaded).
|
|
.It Bq Er EINVAL
|
|
The version specified in the
|
|
.Fa version
|
|
field of stat is not the proper version. You would need to rebuild world, the
|
|
kernel, or your application, if this error occurs, given that you did properly
|
|
fill in the
|
|
.Fa version
|
|
field.
|
|
.It Bq Er EFAULT
|
|
There was a problem copying one, some, or all of the fields into
|
|
.Fa stat
|
|
in the
|
|
.Fn copyout
|
|
function.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr kldfind 2 ,
|
|
.Xr kldfirstmod 2 ,
|
|
.Xr kldload 2 ,
|
|
.Xr kldnext 2 ,
|
|
.Xr kldstat 2 ,
|
|
.Xr kldsym 2 ,
|
|
.Xr kldunload 2 ,
|
|
.Xr modfind 2 ,
|
|
.Xr modfnext 2 ,
|
|
.Xr modnext 2 ,
|
|
.Xr kld 4 ,
|
|
.Xr kldstat 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm kld
|
|
interface first appeared in
|
|
.Fx 3.0 .
|