#define AT24_FLAG_IRUGO BIT(5) /* sysfs-entry will be world-readable */
#define AT24_FLAG_TAKE8ADDR BIT(4) /* take always 8 addresses (24c00) */
#define AT24_FLAG_SERIAL BIT(3) /* factory-programmed serial number */
+#define AT24_FLAG_MAC BIT(2) /* factory-programmed mac address */
void (*setup)(struct nvmem_device *nvmem, void *context);
void *context;