diff options
Diffstat (limited to 'libsysfs/libsysfs.h')
| -rw-r--r-- | libsysfs/libsysfs.h | 198 |
1 files changed, 143 insertions, 55 deletions
diff --git a/libsysfs/libsysfs.h b/libsysfs/libsysfs.h index 01143954e7..ccb9898cb5 100644 --- a/libsysfs/libsysfs.h +++ b/libsysfs/libsysfs.h @@ -3,7 +3,7 @@ * * 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 @@ -24,6 +24,7 @@ #define _LIBSYSFS_H_ #include <sys/types.h> +#include "dlist.h" /* * Generic #defines go here.. @@ -32,11 +33,17 @@ #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 @@ -46,65 +53,84 @@ #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 @@ -114,46 +140,108 @@ extern "C" { /* * 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 } |