/* Attribute read call back for the Value V1 attribute.  */
static ssize_t read_value_v1(struct bt_conn *conn, const struct bt_gatt_attr *attr, void *buf, uint16_t len, uint16_t offset)
/* Attribute read call back for the Value V1 attribute.  */
static ssize_t read_value_v1(struct bt_conn *conn, const struct bt_gatt_attr *attr, void *buf, uint16_t len, uint16_t offset)
{
	const uint8_t *value = attr->user_data;
	return bt_gatt_attr_read(conn, attr, buf, len, offset, value,
				 sizeof(value_v1_value));
}