From 670dd90d81f60ef429cbba54ad235e9207f4d444 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shaohua.li@intel.com>
Date: Mon, 8 May 2006 13:45:57 +0800
Subject: [PATCH] Driver Core: Allow sysdev_class have attributes
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>
---
include/linux/sysdev.h | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
(limited to 'include')
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index 2a4b432..166a2e5 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -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.
*/
--
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