redhat man page for init_module

INIT_MODULE(2)						       Linux Module Support						    INIT_MODULE(2)

NAME
       init_module - initialize a loadable module entry

SYNOPSIS
       #include <linux/module.h>

       int init_module(const char *name, struct module *image);

DESCRIPTION
       init_module loads the relocated module image into kernel space and runs the module's init function.

       The  module  image begins with a module structure and is followed by code and data as appropriate.  The module structure is defined as fol-
       lows:

	      struct module
	      {
		unsigned long size_of_struct;
		struct module *next;
		const char *name;
		unsigned long size;
		long usecount;
		unsigned long flags;
		unsigned int nsyms;
		unsigned int ndeps;
		struct module_symbol *syms;
		struct module_ref *deps;
		struct module_ref *refs;
		int (*init)(void);
		void (*cleanup)(void);
		const struct exception_table_entry *ex_table_start;
		const struct exception_table_entry *ex_table_end;
	      #ifdef __alpha__
		unsigned long gp;
	      #endif
	      };

       All of the pointer fields, with the exception of next and refs, are expected to point within the module body and be initialized	as  appro-
       priate for kernel space, i.e. relocated with the rest of the module.

       This system call is only open to the superuser.

RETURN VALUE
       On success, zero is returned.  On error, -1 is returned and errno is set appropriately.

ERRORS
       EPERM  The user is not the superuser.

       ENOENT No module by that name exists.

       EINVAL Some  image slot filled in incorrectly, image->name does not correspond to the original module name, some image->deps entry does not
	      correspond to a loaded module, or some other similar inconsistency.

       EBUSY  The module's initialization routine failed.

       EFAULT name or image is outside the program's accessible address space.

SEE ALSO
       create_module(2), delete_module(2), query_module(2).

Linux 2.1.17							    26 Dec 1996 						    INIT_MODULE(2)