-#define UT_NOP (0) /* no operation */
-#define UT_REWOFFL (01<<1) /* rewind offline */
-#define UT_LOOP (02<<1) /* loop read/write */
-#define UT_REW (03<<1) /* rewind */
-#define UT_CLEAR (04<<1) /* drive clear */
-#define UT_SENSE (05<<1) /* drive sense */
-#define UT_PRESET (010<<1) /* read in preset */
-#define UT_DIAGN (011<<1) /* diagnostic mode set */
-#define UT_ERASE (012<<1) /* erase */
-#define UT_WEOF (013<<1) /* write tape mark */
-#define UT_SFORW (014<<1) /* forward space block */
-#define UT_SREV (015<<1) /* reverse space block */
-#define UT_SFORWF (016<<1) /* forward space file */
-#define UT_SREVF (017<<1) /* reverse space file */
-#define UT_WCHFORW (024<<1) /* write check forward */
-#define UT_WCHREV (027<<1) /* write check reverse */
-#define UT_WCOM (030<<1) /* write forward */
-#define UT_RCOM (034<<1) /* read forward */
-#define UT_RREV (037<<1) /* read reverse */
+#define UT_NOP 0x0000 /* no operation */
+#define UT_REWOFFL 0x0002 /* rewind offline */
+#define UT_LOOP 0x0004 /* loop read/write */
+#define UT_REW 0x0006 /* rewind */
+#define UT_CLEAR 0x0008 /* drive clear */
+#define UT_SENSE 0x000a /* drive sense */
+#define UT_PRESET 0x0010 /* read in preset */
+#define UT_DIAGN 0x0012 /* diagnostic mode set */
+#define UT_ERASE 0x0014 /* erase */
+#define UT_WEOF 0x0016 /* write tape mark */
+#define UT_SFORW 0x0018 /* forward space block */
+#define UT_SREV 0x001a /* reverse space block */
+#define UT_SFORWF 0x001c /* forward space file */
+#define UT_SREVF 0x001e /* reverse space file */
+#define UT_WCHFORW 0x0028 /* write check forward */
+#define UT_WCHREV 0x002e /* write check reverse */
+#define UT_WCOM 0x0030 /* write forward */
+#define UT_RCOM 0x0038 /* read forward */
+#define UT_RREV 0x003e /* read reverse */