Driver Core: add kobj_attribute handling

[safe/jmp/linux-2.6] / lib / kobject.c

diff --git a/lib/kobject.c b/lib/kobject.c
index 67c3d38..1c343fe 100644 (file)
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -697,6 +697,35 @@ void kset_init(struct kset * k)
        spin_lock_init(&k->list_lock);
 }
 
+/* default kobject attribute operations */
+static ssize_t kobj_attr_show(struct kobject *kobj, struct attribute *attr,
+                             char *buf)
+{
+       struct kobj_attribute *kattr;
+       ssize_t ret = -EIO;
+
+       kattr = container_of(attr, struct kobj_attribute, attr);
+       if (kattr->show)
+               ret = kattr->show(kobj, kattr, buf);
+       return ret;
+}
+
+static ssize_t kobj_attr_store(struct kobject *kobj, struct attribute *attr,
+                              const char *buf, size_t count)
+{
+       struct kobj_attribute *kattr;
+       ssize_t ret = -EIO;
+
+       kattr = container_of(attr, struct kobj_attribute, attr);
+       if (kattr->store)
+               ret = kattr->store(kobj, kattr, buf, count);
+       return ret;
+}
+
+struct sysfs_ops kobj_sysfs_ops = {
+       .show   = kobj_attr_show,
+       .store  = kobj_attr_store,
+};
 
 /**
  *     kset_add - add a kset object to the hierarchy.