sys/disk.h Kernel.framework

Definitions ioctl description ------------------------------------- --------------------------------------- DKIOCEJECT eject media DKIOCSYNCHRONIZE flush media DKIOCFORMAT format media DKIOCGETFORMATCAPACITIES get media's formattable capacities DKIOCGETBLOCKSIZE get media's block size DKIOCGETBLOCKCOUNT get media's block count DKIOCGETFIRMWAREPATH get media's firmware path DKIOCISFORMATTED is media formatted? DKIOCISWRITABLE is media writable? DKIOCREQUESTIDLE idle media DKIOCUNMAP delete unused data DKIOCGETLOCATION get device's physical location DKIOCGETMAXBLOCKCOUNTREAD get maximum block count for reads DKIOCGETMAXBLOCKCOUNTWRITE get maximum block count for writes DKIOCGETMAXBYTECOUNTREAD get maximum byte count for reads DKIOCGETMAXBYTECOUNTWRITE get maximum byte count for writes DKIOCGETMAXSEGMENTCOUNTREAD get maximum segment count for reads DKIOCGETMAXSEGMENTCOUNTWRITE get maximum segment count for writes DKIOCGETMAXSEGMENTBYTECOUNTREAD get maximum segment byte count for reads DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT get minimum segment alignment in bytes DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT get maximum segment width in bits DKIOCGETFEATURES get device's feature set DKIOCGETPHYSICALBLOCKSIZE get device's block size DKIOCGETCOMMANDPOOLSIZE get device's queue depth DKIOCGETPROVISIONSTATUS get device's block provision status DKIOCGETIOMINSATURATIONBYTECOUNT get minimum byte count to saturate storage bandwidth DKIOCGETERRORDESCRIPTION get description of any drive error DKIOCGETMAXSWAPWRITE get maximum swap file write per day in bytes

#define DK_FEATURE_FORCE_UNIT_ACCESS 0x00000001

#define DK_ENCRYPTION_TYPE_AES_CBC 1

#define DK_ENCRYPTION_TYPE_AES_XEX 2

#define DK_ENCRYPTION_TYPE_AES_XTS 3

#define DK_TIER_MASK 0xC0

#define DK_TIER_SHIFT 6

#define DK_TIER_TO_PRIORITY(tier) (((tier) << DK_TIER_SHIFT) | ~DK_TIER_MASK)

#define DK_PRIORITY_TO_TIER(priority) ((priority) >> DK_TIER_SHIFT)

typedef struct dk_physical_extent_t dk_physical_extent_t;

typedef struct dk_set_tier_t dk_set_tier_t;

#define DKIOCSETBLOCKSIZE _IOW('d', 24, uint32_t)

#define DKIOCGETBSDUNIT _IOR('d', 27, uint32_t)

#define DKIOCISSOLIDSTATE _IOR('d', 79, uint32_t)

#define DKIOCISVIRTUAL _IOR('d', 72, uint32_t)

#define DKIOCGETBASE _IOR('d', 73, uint64_t)

#define DKIOCGETTHROTTLEMASK _IOR('d', 80, uint64_t)

#define DKIOCLOCKPHYSICALEXTENTS _IO('d', 81)

#define DKIOCGETPHYSICALEXTENT _IOWR('d', 82, dk_physical_extent_t)

#define DKIOCUNLOCKPHYSICALEXTENTS _IO('d', 83)

#define DKIOCSETTIER _IOW('d', 85, dk_set_tier_t)

#define DKIOCGETENCRYPTIONTYPE _IOR('d', 86, uint32_t)

#define DKIOCISLOWPOWERMODE _IOR('d', 87, uint32_t)

#define DKIOCGETIOMINSATURATIONBYTECOUNT _IOR('d', 88, uint32_t)