diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/sysfs.h | |
download | linux-fsl-qoriq-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/sysfs.h')
-rw-r--r-- | include/linux/sysfs.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h new file mode 100644 index 0000000..6f502ff --- /dev/null +++ b/include/linux/sysfs.h @@ -0,0 +1,182 @@ +/* + * sysfs.h - definitions for the device driver filesystem + * + * Copyright (c) 2001,2002 Patrick Mochel + * Copyright (c) 2004 Silicon Graphics, Inc. + * + * Please see Documentation/filesystems/sysfs.txt for more information. + */ + +#ifndef _SYSFS_H_ +#define _SYSFS_H_ + +#include <asm/atomic.h> + +struct kobject; +struct module; + +struct attribute { + char * name; + struct module * owner; + mode_t mode; +}; + +struct attribute_group { + char * name; + struct attribute ** attrs; +}; + + + +/** + * Use these macros to make defining attributes easier. See include/linux/device.h + * for examples.. + */ + +#define __ATTR(_name,_mode,_show,_store) { \ + .attr = {.name = __stringify(_name), .mode = _mode, .owner = THIS_MODULE }, \ + .show = _show, \ + .store = _store, \ +} + +#define __ATTR_RO(_name) { \ + .attr = { .name = __stringify(_name), .mode = 0444, .owner = THIS_MODULE }, \ + .show = _name##_show, \ +} + +#define __ATTR_NULL { .attr = { .name = NULL } } + +#define attr_name(_attr) (_attr).attr.name + +struct vm_area_struct; + +struct bin_attribute { + struct attribute attr; + size_t size; + void *private; + ssize_t (*read)(struct kobject *, char *, loff_t, size_t); + ssize_t (*write)(struct kobject *, char *, loff_t, size_t); + int (*mmap)(struct kobject *, struct bin_attribute *attr, + struct vm_area_struct *vma); +}; + +struct sysfs_ops { + ssize_t (*show)(struct kobject *, struct attribute *,char *); + ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t); +}; + +struct sysfs_dirent { + atomic_t s_count; + struct list_head s_sibling; + struct list_head s_children; + void * s_element; + int s_type; + umode_t s_mode; + struct dentry * s_dentry; +}; + +#define SYSFS_ROOT 0x0001 +#define SYSFS_DIR 0x0002 +#define SYSFS_KOBJ_ATTR 0x0004 +#define SYSFS_KOBJ_BIN_ATTR 0x0008 +#define SYSFS_KOBJ_LINK 0x0020 +#define SYSFS_NOT_PINNED (SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR | SYSFS_KOBJ_LINK) + +#ifdef CONFIG_SYSFS + +extern int +sysfs_create_dir(struct kobject *); + +extern void +sysfs_remove_dir(struct kobject *); + +extern int +sysfs_rename_dir(struct kobject *, const char *new_name); + +extern int +sysfs_create_file(struct kobject *, const struct attribute *); + +extern int +sysfs_update_file(struct kobject *, const struct attribute *); + +extern void +sysfs_remove_file(struct kobject *, const struct attribute *); + +extern int +sysfs_create_link(struct kobject * kobj, struct kobject * target, char * name); + +extern void +sysfs_remove_link(struct kobject *, char * name); + +int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr); +int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr); + +int sysfs_create_group(struct kobject *, const struct attribute_group *); +void sysfs_remove_group(struct kobject *, const struct attribute_group *); + +#else /* CONFIG_SYSFS */ + +static inline int sysfs_create_dir(struct kobject * k) +{ + return 0; +} + +static inline void sysfs_remove_dir(struct kobject * k) +{ + ; +} + +static inline int sysfs_rename_dir(struct kobject * k, const char *new_name) +{ + return 0; +} + +static inline int sysfs_create_file(struct kobject * k, const struct attribute * a) +{ + return 0; +} + +static inline int sysfs_update_file(struct kobject * k, const struct attribute * a) +{ + return 0; +} + +static inline void sysfs_remove_file(struct kobject * k, const struct attribute * a) +{ + ; +} + +static inline int sysfs_create_link(struct kobject * k, struct kobject * t, char * n) +{ + return 0; +} + +static inline void sysfs_remove_link(struct kobject * k, char * name) +{ + ; +} + + +static inline int sysfs_create_bin_file(struct kobject * k, struct bin_attribute * a) +{ + return 0; +} + +static inline int sysfs_remove_bin_file(struct kobject * k, struct bin_attribute * a) +{ + return 0; +} + +static inline int sysfs_create_group(struct kobject * k, const struct attribute_group *g) +{ + return 0; +} + +static inline void sysfs_remove_group(struct kobject * k, const struct attribute_group * g) +{ + ; +} + +#endif /* CONFIG_SYSFS */ + +#endif /* _SYSFS_H_ */ |