*
* Header Definitions for libsysfs
*
- * Copyright (C) 2003 International Business Machines, Inc.
+ * Copyright (C) IBM Corp. 2003
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#define _LIBSYSFS_H_
#include <sys/types.h>
+#include "dlist.h"
/*
* Generic #defines go here..
#define SYSFS_PROC_MNTS "/proc/mounts"
#define SYSFS_BUS_DIR "/bus"
#define SYSFS_CLASS_DIR "/class"
+#define SYSFS_BLOCK_DIR "/block"
#define SYSFS_DEVICES_DIR "/devices"
#define SYSFS_DEVICES_NAME "devices"
#define SYSFS_DRIVERS_DIR "/drivers"
#define SYSFS_DRIVERS_NAME "drivers"
#define SYSFS_NAME_ATTRIBUTE "name"
+#define SYSFS_UNKNOWN "unknown"
+
+/* Some "block" subsystem specific #defines */
+#define SYSFS_QUEUE_NAME "queue"
+#define SYSFS_IOSCHED_NAME "iosched"
#define SYSFS_PATH_MAX 255
#define SYSFS_NAME_LEN 50
#define SYSFS_METHOD_STORE 0x02 /* attr can be changed by user */
struct sysfs_attribute {
- struct sysfs_attribute *next;
- char path[SYSFS_PATH_MAX];
- char *value;
+ unsigned char *value;
unsigned short len; /* value length */
unsigned short method; /* show and store */
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
};
-struct sysfs_dlink {
- struct sysfs_dlink *next;
- char name[SYSFS_NAME_LEN];
- struct sysfs_directory *target;
+struct sysfs_link {
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+ unsigned char target[SYSFS_PATH_MAX];
};
struct sysfs_directory {
- struct sysfs_directory *next;
- char path[SYSFS_PATH_MAX];
- struct sysfs_directory *subdirs;
- struct sysfs_dlink *links;
- struct sysfs_attribute *attributes;
+ struct dlist *subdirs;
+ struct dlist *links;
+ struct dlist *attributes;
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
};
struct sysfs_driver {
- struct sysfs_driver *next;
- char name[SYSFS_NAME_LEN];
- struct sysfs_directory *directory;
- struct sysfs_device *device;
+ struct dlist *devices;
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+
+ /* for internal use only */
+ struct sysfs_directory *directory;
};
struct sysfs_device {
- struct sysfs_device *next;
- char name[SYSFS_NAME_LEN];
- char bus_id[SYSFS_NAME_LEN];
- struct sysfs_driver *driver;
+ struct sysfs_device *parent;
+ struct dlist *children;
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char bus_id[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+ unsigned char driver_name[SYSFS_NAME_LEN];
+
+ /* for internal use only */
+ struct sysfs_directory *directory;
+};
+
+struct sysfs_root_device {
+ struct dlist *devices;
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+
+ /* for internal use only */
struct sysfs_directory *directory;
- struct sysfs_device *parent;
- struct sysfs_device *children;
};
struct sysfs_bus {
- struct sysfs_bus *next;
- char name[SYSFS_NAME_LEN];
- struct sysfs_directory *directory;
- struct sysfs_driver *drivers;
- struct sysfs_device *devices;
+ struct dlist *drivers;
+ struct dlist *devices;
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+
+ /* internal use only */
+ struct sysfs_directory *directory;
};
struct sysfs_class_device {
- struct sysfs_class_device *next;
- char name[SYSFS_NAME_LEN];
- struct sysfs_directory *directory;
struct sysfs_device *sysdevice; /* NULL if virtual */
struct sysfs_driver *driver; /* NULL if not implemented */
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+
+ /* for internal use only */
+ struct sysfs_directory *directory;
};
struct sysfs_class {
- struct sysfs_class *next;
- char name[SYSFS_NAME_LEN];
- struct sysfs_directory *directory;
- struct sysfs_class_device *devices;
+ struct dlist *devices;
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+
+ /* for internal use only */
+ struct sysfs_directory *directory;
};
#ifdef __cplusplus
/*
* Function Prototypes
*/
-extern int sysfs_get_mnt_path(char *mnt_path, size_t len);
-extern int sysfs_get_name_from_path(const char *path, char *name, size_t len);
-extern int sysfs_get_link(const char *path, char *target, size_t len);
+extern int sysfs_get_mnt_path(unsigned char *mnt_path, size_t len);
+extern int sysfs_get_name_from_path(const unsigned char *path,
+ unsigned char *name, size_t len);
+extern int sysfs_get_link(const unsigned char *path, unsigned char *target,
+ size_t len);
+extern struct dlist *sysfs_open_subsystem_list(unsigned char *name);
+extern struct dlist *sysfs_open_bus_devices_list(unsigned char *name);
+extern void sysfs_close_list(struct dlist *list);
/* sysfs directory and file access */
extern void sysfs_close_attribute(struct sysfs_attribute *sysattr);
-extern struct sysfs_attribute *sysfs_open_attribute(const char *path);
+extern struct sysfs_attribute *sysfs_open_attribute(const unsigned char *path);
extern int sysfs_read_attribute(struct sysfs_attribute *sysattr);
-extern int sysfs_read_attribute_value(const char *attrpath, char *value,
- size_t vsize);
-extern char *sysfs_get_value_from_attributes(struct sysfs_attribute *attr,
- const char * name);
+extern int sysfs_read_attribute_value(const unsigned char *attrpath,
+ unsigned char *value, size_t vsize);
+extern int sysfs_write_attribute(struct sysfs_attribute *sysattr,
+ const unsigned char *new_value, size_t len);
+extern unsigned char *sysfs_get_value_from_attributes(struct dlist *attr,
+ const unsigned char * name);
extern void sysfs_close_directory(struct sysfs_directory *sysdir);
-extern struct sysfs_directory *sysfs_open_directory(const char *path);
+extern struct sysfs_directory *sysfs_open_directory(const unsigned char *path);
extern int sysfs_read_directory(struct sysfs_directory *sysdir);
-extern void sysfs_close_dlink(struct sysfs_dlink *dlink);
-extern struct sysfs_dlink *sysfs_open_dlink(const char *linkpath);
-extern int sysfs_read_dlinks(struct sysfs_dlink *dlink);
+extern int sysfs_read_all_subdirs(struct sysfs_directory *sysdir);
+extern struct sysfs_directory *sysfs_get_subdirectory
+ (struct sysfs_directory *dir, unsigned char *subname);
+extern void sysfs_close_link(struct sysfs_link *ln);
+extern struct sysfs_link *sysfs_open_link(const unsigned char *lnpath);
+extern struct sysfs_link *sysfs_get_directory_link(struct sysfs_directory *dir,
+ unsigned char *linkname);
+extern struct sysfs_link *sysfs_get_subdirectory_link
+ (struct sysfs_directory *dir, unsigned char *linkname);
+extern struct sysfs_attribute *sysfs_get_directory_attribute
+ (struct sysfs_directory *dir, unsigned char *attrname);
/* sysfs driver access */
extern void sysfs_close_driver(struct sysfs_driver *driver);
-extern struct sysfs_driver *sysfs_open_driver(const char *path);
+extern struct sysfs_driver *sysfs_open_driver(const unsigned char *path);
+extern struct sysfs_attribute *sysfs_get_driver_attr
+ (struct sysfs_driver *drv, const unsigned char *name);
+extern struct dlist *sysfs_get_driver_attributes(struct sysfs_driver *driver);
+extern struct dlist *sysfs_get_driver_links(struct sysfs_driver *driver);
+extern void sysfs_close_driver_by_name(struct sysfs_driver *driver);
+extern struct sysfs_driver *sysfs_open_driver_by_name
+ (const unsigned char *drv_name, const unsigned char *bus, size_t bsize);
+extern int sysfs_write_driver_attr(unsigned char *drv, unsigned char *attrib,
+ unsigned char *value, size_t len);
+extern int sysfs_read_driver_attr(unsigned char *drv, unsigned char *attrib,
+ unsigned char *value, size_t len);
/* generic sysfs device access */
+extern void sysfs_close_root_device(struct sysfs_root_device *root);
+extern struct sysfs_root_device *sysfs_open_root_device
+ (const unsigned char *name);
extern void sysfs_close_device(struct sysfs_device *dev);
-extern void sysfs_close_device_tree(struct sysfs_device *dev);
-extern struct sysfs_device *sysfs_open_device(const char *path);
-extern struct sysfs_device *sysfs_open_device_tree(const char *path);
+extern struct sysfs_device *sysfs_open_device(const unsigned char *path);
extern struct sysfs_attribute *sysfs_get_device_attr
- (struct sysfs_device *dev, const char *name);
+ (struct sysfs_device *dev, const unsigned char *name);
+extern struct dlist *sysfs_get_device_attributes(struct sysfs_device *device);
+extern struct sysfs_device *sysfs_open_device_by_id
+ (const unsigned char *bus_id, const unsigned char *bus, size_t bsize);
+extern int sysfs_write_device_attr(unsigned char *dev, unsigned char *attrib,
+ unsigned char *value, size_t len);
+extern int sysfs_read_device_attr(unsigned char *dev, unsigned char *attrib,
+ unsigned char *value, size_t len);
/* generic sysfs bus access */
extern void sysfs_close_bus(struct sysfs_bus *bus);
-extern struct sysfs_bus *sysfs_open_bus(const char *name);
+extern struct sysfs_bus *sysfs_open_bus(const unsigned char *name);
+extern struct sysfs_device *sysfs_get_bus_device(struct sysfs_bus *bus,
+ unsigned char *id);
+extern struct sysfs_driver *sysfs_get_bus_driver(struct sysfs_bus *bus,
+ unsigned char *drvname);
+extern struct dlist *sysfs_get_bus_attributes(struct sysfs_bus *bus);
+extern struct sysfs_attribute *sysfs_get_bus_attribute(struct sysfs_bus *bus,
+ unsigned char *attrname);
+extern struct sysfs_device *sysfs_open_bus_device(unsigned char *busname,
+ unsigned char *dev_id);
+extern int sysfs_find_device_bus(const unsigned char *dev_id,
+ unsigned char *busname, size_t bsize);
+extern int sysfs_find_driver_bus(const unsigned char *driver,
+ unsigned char *busname, size_t bsize);
/* generic sysfs class access */
extern void sysfs_close_class_device(struct sysfs_class_device *dev);
-extern struct sysfs_class_device *sysfs_open_class_device(const char *path);
+extern struct sysfs_class_device *sysfs_open_class_device
+ (const unsigned char *path);
extern void sysfs_close_class(struct sysfs_class *cls);
-extern struct sysfs_class *sysfs_open_class(const char *name);
+extern struct sysfs_class *sysfs_open_class(const unsigned char *name);
+extern struct sysfs_class_device *sysfs_get_class_device
+ (struct sysfs_class *class, unsigned char *name);
+extern struct sysfs_class_device *sysfs_open_class_device_by_name
+ (const unsigned char *class, unsigned char *name);
+extern struct dlist *sysfs_get_classdev_attributes
+ (struct sysfs_class_device *cdev);
+extern int sysfs_find_device_class(const unsigned char *bus_id,
+ unsigned char *classname, size_t bsize);
+extern struct sysfs_attribute *sysfs_get_classdev_attr
+ (struct sysfs_class_device *clsdev, const unsigned char *name);
+extern int sysfs_write_classdev_attr(unsigned char *dev, unsigned char *attrib,
+ unsigned char *value, size_t len);
+extern int sysfs_read_classdev_attr(unsigned char *dev, unsigned char *attrib,
+ unsigned char *value, size_t len);
#ifdef __cplusplus
}
~ianmdlvl / elogind.git / blobdiff