| [9] | 1 | /* <sys/mtio.h> magnetic tape commands Author: Kees J. Bot
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| 2 | */
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| 3 |
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| 4 | #ifndef _SYS__MTIO_H
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| 5 | #define _SYS__MTIO_H
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| 6 |
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| 7 | /* Tape operations: ioctl(fd, MTIOCTOP, &struct mtop) */
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| 8 |
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| 9 | struct mtop {
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| 10 | short mt_op; /* Operation (MTWEOF, etc.) */
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| 11 | int mt_count; /* Repeat count. */
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| 12 | };
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| 13 |
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| 14 | #define MTWEOF 0 /* Write End-Of-File Marker */
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| 15 | #define MTFSF 1 /* Forward Space File mark */
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| 16 | #define MTBSF 2 /* Backward Space File mark */
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| 17 | #define MTFSR 3 /* Forward Space Record */
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| 18 | #define MTBSR 4 /* Backward Space Record */
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| 19 | #define MTREW 5 /* Rewind tape */
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| 20 | #define MTOFFL 6 /* Rewind and take Offline */
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| 21 | #define MTNOP 7 /* No-Operation, set status only */
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| 22 | #define MTRETEN 8 /* Retension (completely wind and rewind) */
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| 23 | #define MTERASE 9 /* Erase the tape and rewind */
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| 24 | #define MTEOM 10 /* Position at End-Of-Media */
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| 25 | #define MTMODE 11 /* Select tape density */
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| 26 | #define MTBLKZ 12 /* Select tape block size */
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| 27 |
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| 28 | /* Tape status: ioctl(fd, MTIOCGET, &struct mtget) */
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| 29 |
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| 30 | struct mtget {
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| 31 | short mt_type; /* Type of tape device. */
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| 32 |
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| 33 | /* Device dependent "registers". */
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| 34 | short mt_dsreg; /* Drive status register. */
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| 35 | short mt_erreg; /* Error register. */
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| 36 | short dummy; /* (alignment) */
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| 37 |
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| 38 | /* Misc info. */
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| 39 | off_t mt_resid; /* Residual count. */
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| 40 | off_t mt_fileno; /* Current File Number. */
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| 41 | off_t mt_blkno; /* Current Block Number within file. */
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| 42 | off_t mt_blksize; /* Current block size. */
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| 43 | };
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| 44 |
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| 45 | #endif /* _SYS__MTIO_H */
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