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Man Pages


Manual Reference Pages  -  MODSTAT (2)

NAME

modstat - get status of kernel module

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
History

LIBRARY


.Lb libc

SYNOPSIS


.In sys/param.h
.In sys/module.h int modstat int modid struct module_stat *stat

DESCRIPTION

The modstat system call writes the info for the kernel module referred to by modid into stat.
struct module_stat {
        int         version;        /* set to sizeof(module_stat) */
        char        name[MAXMODNAME];
        int         refs;
        int         id;
        modspecific_t data;
};
typedef union modspecific {
        int         intval;
        u_int       uintval;
        long        longval;
        u_long      ulongval;
} modspecific_t;

version This field is set to the size of the structure mentioned above by the code calling modstat, and not modstat itself.
name The name of the module referred to by modid.
refs The number of modules referenced by modid.
id The id of the module specified in modid.
data Module specific data.

RETURN VALUES


.Rv -std modstat

ERRORS

The information for the module referred to by modid is filled into the structure pointed to by stat unless:
[ENOENT]
  The module was not found (probably not loaded).
[EINVAL]
  The version specified in the 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 version field.
[EFAULT]
  There was a problem copying one, some, or all of the fields into stat in the copyout(9) function.

SEE ALSO

kldfind(2), kldfirstmod(2), kldload(2), kldnext(2), kldstat(2), kldsym(2), kldunload(2), modfind(2), modfnext(2), modnext(2), kld(4), kldstat(8)

HISTORY

The kld interface first appeared in
.Fx 3.0 .
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