+#ifndef START_STOP_UNIT
+#define START_STOP_UNIT 0x1b
+#endif
+#ifndef REPORT_LUNS
+#define REPORT_LUNS 0xa0
+#endif
+#ifndef READ_CAPACITY_10
+#define READ_CAPACITY_10 0x25
+#endif
+#ifndef READ_CAPACITY_16
+#define READ_CAPACITY_16 0x9e /* service action 0x10 */
+#endif