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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | #ifndef _LINUX_BLKPG_H |
| 2 | #define _LINUX_BLKPG_H |
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| 3 | |||
| 4 | /* |
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| 5 | * Partition table and disk geometry handling |
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| 6 | * |
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| 7 | * A single ioctl with lots of subfunctions: |
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| 8 | * |
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| 9 | * Device number stuff: |
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| 10 | * get_whole_disk() (given the device number of a partition, |
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| 11 | * find the device number of the encompassing disk) |
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| 12 | * get_all_partitions() (given the device number of a disk, return the |
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| 13 | * device numbers of all its known partitions) |
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| 14 | * |
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| 15 | * Partition stuff: |
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| 16 | * add_partition() |
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| 17 | * delete_partition() |
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| 18 | * test_partition_in_use() (also for test_disk_in_use) |
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| 19 | * |
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| 20 | * Geometry stuff: |
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| 21 | * get_geometry() |
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| 22 | * set_geometry() |
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| 23 | * get_bios_drivedata() |
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| 24 | * |
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| 25 | * For today, only the partition stuff - aeb, 990515 |
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| 26 | */ |
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| 27 | #include <linux/ioctl.h> |
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| 28 | |||
| 29 | #define BLKPG _IO(0x12,105) |
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| 30 | |||
| 31 | /* The argument structure */ |
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| 32 | struct blkpg_ioctl_arg { |
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| 33 | int op; |
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| 34 | int flags; |
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| 35 | int datalen; |
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| 36 | void *data; |
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| 37 | }; |
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| 38 | |||
| 39 | /* The subfunctions (for the op field) */ |
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| 40 | #define BLKPG_ADD_PARTITION 1 |
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| 41 | #define BLKPG_DEL_PARTITION 2 |
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| 42 | |||
| 43 | /* Sizes of name fields. Unused at present. */ |
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| 44 | #define BLKPG_DEVNAMELTH 64 |
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| 45 | #define BLKPG_VOLNAMELTH 64 |
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| 46 | |||
| 47 | /* The data structure for ADD_PARTITION and DEL_PARTITION */ |
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| 48 | struct blkpg_partition { |
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| 49 | long long start; /* starting offset in bytes */ |
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| 50 | long long length; /* length in bytes */ |
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| 51 | int pno; /* partition number */ |
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| 52 | char devname[BLKPG_DEVNAMELTH]; /* partition name, like sda5 or c0d1p2, |
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| 53 | to be used in kernel messages */ |
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| 54 | char volname[BLKPG_VOLNAMELTH]; /* volume label */ |
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| 55 | }; |
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| 56 | |||
| 57 | #endif /* _LINUX_BLKPG_H */ |