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[PATCH] Driver Core: Allow sysdev_class have attributes

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allow sysdev_class adding attribute. Next patch will use the new API to
add an attribute under /sys/device/system/cpu/.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Shaohua Li 2006-05-08 13:45:57 +08:00 • committed by Greg Kroah-Hartman
commit 670dd90d81
2 changed files with 67 additions and 2 deletions
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18
include/linux/sysdev.h
View file

@ -37,11 +37,27 @@ struct sysdev_class {
struct kset kset;
};
struct sysdev_class_attribute {
struct attribute attr;
ssize_t (*show)(struct sysdev_class *, char *);
ssize_t (*store)(struct sysdev_class *, const char *, size_t);
};
#define SYSDEV_CLASS_ATTR(_name,_mode,_show,_store) \
struct sysdev_class_attribute attr_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode }, \
.show = _show, \
.store = _store, \
};
extern int sysdev_class_register(struct sysdev_class *);
extern void sysdev_class_unregister(struct sysdev_class *);
extern int sysdev_class_create_file(struct sysdev_class *,
struct sysdev_class_attribute *);
extern void sysdev_class_remove_file(struct sysdev_class *,
struct sysdev_class_attribute *);
/**
* Auxillary system device drivers.
*/