haiku/headers/os/drivers/module.h

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/*
* Copyright 2002-2008, Haiku Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _MODULE_H
#define _MODULE_H
#include <OS.h>
/* Every module exports a list of module_info structures.
* It defines the interface of the module and the name
* that is used to access the interface.
*/
typedef struct module_info {
const char *name;
uint32 flags;
status_t (*std_ops)(int32, ...);
} module_info;
/* module standard operations */
#define B_MODULE_INIT 1
#define B_MODULE_UNINIT 2
/* module flags */
#define B_KEEP_LOADED 0x00000001
/* Use the module_dependency structure to let the
* kernel automatically load modules yet depend on
* before B_MODULE_INIT is called.
*/
typedef struct module_dependency {
const char *name;
module_info **info;
} module_dependency;
#ifdef __cplusplus
extern "C" {
#endif
extern status_t get_module(const char *path, module_info **_info);
extern status_t put_module(const char *path);
extern status_t get_next_loaded_module_name(uint32 *cookie, char *buffer,
size_t *_bufferSize);
extern void *open_module_list_etc(const char *prefix, const char *suffix);
extern void *open_module_list(const char *prefix);
extern status_t close_module_list(void *cookie);
extern status_t read_next_module_name(void *cookie, char *buffer,
size_t *_bufferSize);
#ifdef __cplusplus
}
#endif
#endif /* _MODULE_H */