#ifndef _LINUX_BLKPG_H #define _LINUX_BLKPG_H /* * Partition table and disk geometry handling * * A single ioctl with lots of subfunctions: * * Device number stuff: * get_whole_disk() (given the device number of a partition, * find the device number of the encompassing disk) * get_all_partitions() (given the device number of a disk, return the * device numbers of all its known partitions) * * Partition stuff: * add_partition() * delete_partition() * test_partition_in_use() (also for test_disk_in_use) * * Geometry stuff: * get_geometry() * set_geometry() * get_bios_drivedata() * * For today, only the partition stuff - aeb, 990515 */ #include #define BLKPG _IO(0x12,105) /* The argument structure */ struct blkpg_ioctl_arg { int op; int flags; int datalen; void *data; }; /* The subfunctions (for the op field) */ #define BLKPG_ADD_PARTITION 1 #define BLKPG_DEL_PARTITION 2 /* Sizes of name fields. Unused at present. */ #define BLKPG_DEVNAMELTH 64 #define BLKPG_VOLNAMELTH 64 /* The data structure for ADD_PARTITION and DEL_PARTITION */ struct blkpg_partition { long long start; /* starting offset in bytes */ long long length; /* length in bytes */ int pno; /* partition number */ char devname[BLKPG_DEVNAMELTH]; /* partition name, like sda5 or c0d1p2, to be used in kernel messages */ char volname[BLKPG_VOLNAMELTH]; /* volume label */ }; #endif /* _LINUX_BLKPG_H */