*/
#define SYSFS_FSTYPE_NAME "sysfs"
#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_BUS_NAME "bus"
+#define SYSFS_CLASS_NAME "class"
+#define SYSFS_BLOCK_NAME "block"
#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_ENV "SYSFS_PATH"
#define SYSFS_PATH_MAX 255
#define SYSFS_NAME_LEN 50
};
struct sysfs_directory {
+ unsigned char name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
+
+ /* Private: for internal use only */
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 dlist *devices;
unsigned char name[SYSFS_NAME_LEN];
unsigned char path[SYSFS_PATH_MAX];
- /* for internal use only */
+ /* Private: for internal use only */
+ struct dlist *devices;
struct sysfs_directory *directory;
};
struct sysfs_device {
- 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 bus[SYSFS_NAME_LEN];
unsigned char driver_name[SYSFS_NAME_LEN];
+ unsigned char path[SYSFS_PATH_MAX];
- /* for internal use only */
+ /* Private: for internal use only */
+ struct sysfs_device *parent;
+ struct dlist *children;
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 */
+ /* Private: for internal use only */
+ struct dlist *devices;
struct sysfs_directory *directory;
};
struct sysfs_bus {
- struct dlist *drivers;
- struct dlist *devices;
unsigned char name[SYSFS_NAME_LEN];
unsigned char path[SYSFS_PATH_MAX];
- /* internal use only */
+ /* Private: for internal use only */
+ struct dlist *drivers;
+ struct dlist *devices;
struct sysfs_directory *directory;
};
struct sysfs_class_device {
- struct sysfs_device *sysdevice; /* NULL if virtual */
- struct sysfs_driver *driver; /* NULL if not implemented */
unsigned char name[SYSFS_NAME_LEN];
+ unsigned char classname[SYSFS_NAME_LEN];
unsigned char path[SYSFS_PATH_MAX];
- /* for internal use only */
+ /* Private: for internal use only */
+ struct sysfs_class_device *parent;
+ struct sysfs_device *sysdevice; /* NULL if virtual */
+ struct sysfs_driver *driver; /* NULL if not implemented */
struct sysfs_directory *directory;
};
struct sysfs_class {
- struct dlist *devices;
unsigned char name[SYSFS_NAME_LEN];
unsigned char path[SYSFS_PATH_MAX];
- /* for internal use only */
+ /* Private: for internal use only */
+ struct dlist *devices;
struct sysfs_directory *directory;
};
* Function Prototypes
*/
extern int sysfs_get_mnt_path(unsigned char *mnt_path, size_t len);
+extern int sysfs_remove_trailing_slash(unsigned char *path);
extern int sysfs_get_name_from_path(const unsigned char *path,
unsigned char *name, size_t len);
+extern int sysfs_path_is_dir(const unsigned char *path);
+extern int sysfs_path_is_link(const unsigned char *path);
+extern int sysfs_path_is_file(const unsigned char *path);
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);
const unsigned char *new_value, size_t len);
extern unsigned char *sysfs_get_value_from_attributes(struct dlist *attr,
const unsigned char * name);
+extern int sysfs_refresh_dir_attributes(struct sysfs_directory *sysdir);
+extern int sysfs_refresh_dir_links(struct sysfs_directory *sysdir);
+extern int sysfs_refresh_dir_subdirs(struct sysfs_directory *sysdir);
extern void sysfs_close_directory(struct sysfs_directory *sysdir);
extern struct sysfs_directory *sysfs_open_directory(const unsigned char *path);
+extern int sysfs_read_dir_attributes(struct sysfs_directory *sysdir);
+extern int sysfs_read_dir_links(struct sysfs_directory *sysdir);
+extern int sysfs_read_dir_subdirs(struct sysfs_directory *sysdir);
extern int sysfs_read_directory(struct sysfs_directory *sysdir);
extern int sysfs_read_all_subdirs(struct sysfs_directory *sysdir);
extern struct sysfs_directory *sysfs_get_subdirectory
(struct sysfs_directory *dir, unsigned char *linkname);
extern struct sysfs_attribute *sysfs_get_directory_attribute
(struct sysfs_directory *dir, unsigned char *attrname);
+extern struct dlist *sysfs_get_dir_attributes(struct sysfs_directory *dir);
+extern struct dlist *sysfs_get_dir_links(struct sysfs_directory *dir);
+extern struct dlist *sysfs_get_dir_subdirs(struct sysfs_directory *dir);
/* sysfs driver access */
extern void sysfs_close_driver(struct sysfs_driver *driver);
-extern struct sysfs_driver *sysfs_open_driver(const unsigned char *path);
+extern struct sysfs_driver *sysfs_open_driver
+ (const unsigned char *drv_name, const unsigned char *bus_name);
+extern struct sysfs_driver *sysfs_open_driver_path(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_devices(struct sysfs_driver *driver);
+extern struct dlist *sysfs_refresh_driver_devices(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);
+extern struct sysfs_device *sysfs_get_driver_device
+ (struct sysfs_driver *driver, const unsigned char *name);
+extern struct dlist *sysfs_refresh_driver_attributes
+ (struct sysfs_driver *driver);
+extern struct sysfs_attribute *sysfs_open_driver_attr(const unsigned char *bus,
+ const unsigned char *drv, const unsigned char *attrib);
/* 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 struct dlist *sysfs_get_root_devices(struct sysfs_root_device *root);
extern void sysfs_close_device(struct sysfs_device *dev);
-extern struct sysfs_device *sysfs_open_device(const unsigned char *path);
+extern struct sysfs_device *sysfs_open_device
+ (const unsigned char *bus_id, const unsigned char *bus);
+extern struct sysfs_device *sysfs_get_device_parent(struct sysfs_device *dev);
+extern struct sysfs_device *sysfs_open_device_path(const unsigned char *path);
+extern int sysfs_get_device_bus(struct sysfs_device *dev);
extern struct sysfs_attribute *sysfs_get_device_attr
(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);
+extern struct dlist *sysfs_refresh_device_attributes
+ (struct sysfs_device *device);
+extern struct sysfs_attribute *sysfs_open_device_attr(const unsigned char *bus,
+ const unsigned char *bus_id, const unsigned char *attrib);
/* generic sysfs bus access */
extern void sysfs_close_bus(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_drivers(struct sysfs_bus *bus);
+extern struct dlist *sysfs_get_bus_devices(struct sysfs_bus *bus);
extern struct dlist *sysfs_get_bus_attributes(struct sysfs_bus *bus);
+extern struct dlist *sysfs_refresh_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
+extern struct sysfs_class_device *sysfs_open_class_device_path
(const unsigned char *path);
+extern struct sysfs_class_device *sysfs_open_class_device
+ (const unsigned char *class, const unsigned char *name);
+extern struct sysfs_device *sysfs_get_classdev_device
+ (struct sysfs_class_device *clsdev);
+extern struct sysfs_driver *sysfs_get_classdev_driver
+ (struct sysfs_class_device *clsdev);
+extern struct sysfs_class_device *sysfs_get_classdev_parent
+ (struct sysfs_class_device *clsdev);
extern void sysfs_close_class(struct sysfs_class *cls);
extern struct sysfs_class *sysfs_open_class(const unsigned char *name);
+extern struct dlist *sysfs_get_class_devices(struct sysfs_class *cls);
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 dlist *sysfs_refresh_classdev_attributes
+ (struct sysfs_class_device *cdev);
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);
+extern struct sysfs_attribute *sysfs_open_classdev_attr
+ (const unsigned char *classname, const unsigned char *dev,
+ const unsigned char *attrib);
#ifdef __cplusplus
}