greybus: serial number attribute added
diff --git a/drivers/staging/greybus/core.c b/drivers/staging/greybus/core.c
index c05495b..68fb2a5 100644
--- a/drivers/staging/greybus/core.c
+++ b/drivers/staging/greybus/core.c
@@ -169,7 +169,6 @@
}
-
static struct device_type greybus_module_type = {
.name = "greybus_module",
.release = greybus_module_release,
@@ -222,8 +221,40 @@
.is_visible = function_attrs_are_visible,
};
+#if 0
+struct greybus_descriptor_module_id {
+ __le16 vendor;
+ __le16 product;
+ __le16 version;
+ __u8 vendor_stringid;
+ __u8 product_stringid;
+};
+#endif
+
+/* Serial Number */
+static ssize_t serial_number_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct greybus_device *gdev = to_greybus_device(dev);
+ return sprintf(buf, "%llX\n",
+ (unsigned long long)gdev->serial_number.serial_number);
+}
+static DEVICE_ATTR_RO(serial_number);
+
+static struct attribute *serial_number_attrs[] = {
+ &dev_attr_serial_number.attr,
+ NULL,
+};
+
+static struct attribute_group serial_number_grp = {
+ .attrs = serial_number_attrs,
+ .is_visible = function_attrs_are_visible,
+};
+
+
static const struct attribute_group *greybus_module_groups[] = {
&function_addr_grp,
+ &serial_number_grp,
NULL,
};