modstat(8) [netbsd man page]

MODSTAT(8)						    BSD System Manager's Manual 						MODSTAT(8)

NAME

     modstat -- display status of loaded kernel modules

SYNOPSIS

     modstat [-n] [name]

DESCRIPTION

     The modstat utility displays the status of any kernel modules present in the kernel.

     The options are as follows:

     -n name
	     Display the status of only the module with this name.  Please note that -n is optional.

     In addition to listing the currently loaded modules' name, the information reported by modstat includes:

     CLASS     Module class, such as "vfs", "driver", "exec", "misc" or "secmodel".

     SOURCE    Where the module was loaded from.  "builtin" indicates that the module was built into the running kernel.  "boot" indicates that
	       the module was loaded during system bootstrap.  "filesys" indicates that the module was loaded from the file system.

     SIZE      Size of the module in bytes.

     REFS      Number of references held on the module.  Disabled builtin modules will show a count of -1 here.

     REQUIRES  Additional modules that must be present.

EXIT STATUS

     The modstat utility exits with a status of 0 on success and with a nonzero status if an error occurs.

SEE ALSO

     module(7), modload(8), modunload(8)

HISTORY

     The modstat command was designed to be similar in functionality to the corresponding command in SunOS 4.1.3.

BSD
								  August 2, 2011							       BSD

MODSTAT(2)						      BSD System Calls Manual							MODSTAT(2)

NAME

     modstat -- get status of kernel module

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/param.h>
     #include <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

     The modstat() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate
     the error.

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 ker-
			nel, 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 FreeBSD 3.0.

BSD
								   July 15, 2008							       BSD