+struct hwmon_device {
+ const char *name;
+ struct device dev;
+};
+#define to_hwmon_device(d) container_of(d, struct hwmon_device, dev)
+
+static ssize_t
+show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%s\n", to_hwmon_device(dev)->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *hwmon_dev_attrs[] = {
+ &dev_attr_name.attr,
+ NULL
+};
+
+static umode_t hwmon_dev_name_is_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+
+ if (to_hwmon_device(dev)->name == NULL)
+ return 0;
+
+ return attr->mode;
+}
+
+static struct attribute_group hwmon_dev_attr_group = {
+ .attrs = hwmon_dev_attrs,
+ .is_visible = hwmon_dev_name_is_visible,
+};
+
+static const struct attribute_group *hwmon_dev_attr_groups[] = {
+ &hwmon_dev_attr_group,
+ NULL
+};
+
+static void hwmon_dev_release(struct device *dev)
+{
+ kfree(to_hwmon_device(dev));
+}
+
+static struct class hwmon_class = {
+ .name = "hwmon",
+ .owner = THIS_MODULE,
+ .dev_groups = hwmon_dev_attr_groups,
+ .dev_release = hwmon_dev_release,
+};