# Macros ## Topics ### Macros [`#define ALWAYS`](/documentation/DriverKit/ALWAYS) [`#define APPLE_KEXT_OVERRIDE`](/documentation/DriverKit/APPLE_KEXT_OVERRIDE) [`#define DEFN(classname, name)`](/documentation/DriverKit/DEFN) [`#define DRIVERKIT_CONSUMED`](/documentation/DriverKit/DRIVERKIT_CONSUMED) [`#define DRIVERKIT_CONSUMES_THIS`](/documentation/DriverKit/DRIVERKIT_CONSUMES_THIS) [`#define DRIVERKIT_FRAMEWORK_INCLUDE`](/documentation/DriverKit/DRIVERKIT_FRAMEWORK_INCLUDE) [`#define DRIVERKIT_IOLIB_H`](/documentation/DriverKit/DRIVERKIT_IOLIB_H) [`#define DRIVERKIT_OSCOLLECTIONS_H`](/documentation/DriverKit/DRIVERKIT_OSCOLLECTIONS_H) [`#define DRIVERKIT_RETURNS_NOT_RETAINED`](/documentation/DriverKit/DRIVERKIT_RETURNS_NOT_RETAINED) [`#define DRIVERKIT_RETURNS_RETAINED`](/documentation/DriverKit/DRIVERKIT_RETURNS_RETAINED) [`#define DRIVERKIT_RETURNS_RETAINED_ON_NONZERO`](/documentation/DriverKit/DRIVERKIT_RETURNS_RETAINED_ON_NONZERO) [`#define DRIVERKIT_RETURNS_RETAINED_ON_ZERO`](/documentation/DriverKit/DRIVERKIT_RETURNS_RETAINED_ON_ZERO) [`#define ERR_SUCCESS`](/documentation/DriverKit/ERR_SUCCESS) [`#define EXTENDS(cls)`](/documentation/DriverKit/EXTENDS) [`#define HIDDEN`](/documentation/DriverKit/HIDDEN) [`#define IIG_CONCRETE`](/documentation/DriverKit/IIG_CONCRETE) [`#define IIG_EXTENDS(cls)`](/documentation/DriverKit/IIG_EXTENDS) [`#define IIG_INVOKEREPLY`](/documentation/DriverKit/IIG_INVOKEREPLY) [`#define IIG_KERNEL`](/documentation/DriverKit/IIG_KERNEL) Tells the system that the class or method runs inside the kernel. [`#define IIG_LOCAL`](/documentation/DriverKit/IIG_LOCAL) [`#define IIG_LOCALHOST`](/documentation/DriverKit/IIG_LOCALHOST) [`#define IIG_LOCALONLY`](/documentation/DriverKit/IIG_LOCALONLY) [`#define IIG_NATIVE`](/documentation/DriverKit/IIG_NATIVE) [`#define IIG_PORTCOPYSEND`](/documentation/DriverKit/IIG_PORTCOPYSEND) [`#define IIG_PORTMAKESEND`](/documentation/DriverKit/IIG_PORTMAKESEND) [`#define IIG_QUEUENAME(name)`](/documentation/DriverKit/IIG_QUEUENAME) [`#define IIG_REMOTE`](/documentation/DriverKit/IIG_REMOTE) [`#define IIG_REPLY`](/documentation/DriverKit/IIG_REPLY) [`#define IIG_SERIALIZABLE`](/documentation/DriverKit/IIG_SERIALIZABLE) [`#define IIG_TARGET`](/documentation/DriverKit/IIG_TARGET) [`#define IIG_TYPE(p)`](/documentation/DriverKit/IIG_TYPE) [`#define INVOKEREPLY`](/documentation/DriverKit/INVOKEREPLY) [`#define IOLockFreeZero(l)`](/documentation/DriverKit/IOLockFreeZero) [`#define IOREPORTER_CHECK_CONFIG_LOCK()`](/documentation/DriverKit/IOREPORTER_CHECK_CONFIG_LOCK) [`#define IOREPORTER_CHECK_LOCK()`](/documentation/DriverKit/IOREPORTER_CHECK_LOCK) [`#define IOREPORTER_DEBUG_ELEMENT(idx)`](/documentation/DriverKit/IOREPORTER_DEBUG_ELEMENT) [`#define IOREPORT_GETUNIT_QUANTITY(unit)`](/documentation/DriverKit/IOREPORT_GETUNIT_QUANTITY) [`#define IOREPORT_GETUNIT_SCALE(unit)`](/documentation/DriverKit/IOREPORT_GETUNIT_SCALE) [`#define IOREPORT_MAKEID(A, B, C, D, E, F, G, H)`](/documentation/DriverKit/IOREPORT_MAKEID) [`#define IORERROR(fmt, args...)`](/documentation/DriverKit/IORERROR) [`#define IORERROR_LOG`](/documentation/DriverKit/IORERROR_LOG) [`#define IORLOG(fmt, args...)`](/documentation/DriverKit/IORLOG) [`#define IORWLockFreeZero(l)`](/documentation/DriverKit/IORWLockFreeZero) [`#define IOR_VALUES_PER_ELEMENT`](/documentation/DriverKit/IOR_VALUES_PER_ELEMENT) [`#define IORecursiveLockFreeZero(l)`](/documentation/DriverKit/IORecursiveLockFreeZero) [`#define IOTimerDispatchSource_DECLARE_IVARS`](/documentation/DriverKit/IOTimerDispatchSource_DECLARE_IVARS) [`#define IO_FOR_ANALYZER(x)`](/documentation/DriverKit/IO_FOR_ANALYZER) [`#define IO_USER_CLIENT_METHOD_ARGUMENTS_CURRENT_VERSION`](/documentation/DriverKit/IO_USER_CLIENT_METHOD_ARGUMENTS_CURRENT_VERSION) [`#define KERN_SUCCESS`](/documentation/DriverKit/KERN_SUCCESS) [`#define LIBKERN_CONSUMED`](/documentation/DriverKit/LIBKERN_CONSUMED) [`#define LIBKERN_CONSUMES_THIS`](/documentation/DriverKit/LIBKERN_CONSUMES_THIS) [`#define LIBKERN_RETURNS_NOT_RETAINED`](/documentation/DriverKit/LIBKERN_RETURNS_NOT_RETAINED) [`#define LIBKERN_RETURNS_RETAINED`](/documentation/DriverKit/LIBKERN_RETURNS_RETAINED) [`#define LIBKERN_RETURNS_RETAINED_ON_NONZERO`](/documentation/DriverKit/LIBKERN_RETURNS_RETAINED_ON_NONZERO) [`#define LIBKERN_RETURNS_RETAINED_ON_ZERO`](/documentation/DriverKit/LIBKERN_RETURNS_RETAINED_ON_ZERO) [`#define LOCALHOST`](/documentation/DriverKit/LOCALHOST) [`#define MACH_MSG_ALLOCATE`](/documentation/DriverKit/MACH_MSG_ALLOCATE) [`#define MACH_MSG_OOL_DESCRIPTOR`](/documentation/DriverKit/MACH_MSG_OOL_DESCRIPTOR) [`#define MACH_MSG_PHYSICAL_COPY`](/documentation/DriverKit/MACH_MSG_PHYSICAL_COPY) [`#define MACH_MSG_PORT_DESCRIPTOR`](/documentation/DriverKit/MACH_MSG_PORT_DESCRIPTOR) [`#define MACH_MSG_TYPE_COPY_RECEIVE`](/documentation/DriverKit/MACH_MSG_TYPE_COPY_RECEIVE) [`#define MACH_MSG_TYPE_COPY_SEND`](/documentation/DriverKit/MACH_MSG_TYPE_COPY_SEND) [`#define MACH_MSG_TYPE_DISPOSE_RECEIVE`](/documentation/DriverKit/MACH_MSG_TYPE_DISPOSE_RECEIVE) [`#define MACH_MSG_TYPE_DISPOSE_SEND`](/documentation/DriverKit/MACH_MSG_TYPE_DISPOSE_SEND) [`#define MACH_MSG_TYPE_DISPOSE_SEND_ONCE`](/documentation/DriverKit/MACH_MSG_TYPE_DISPOSE_SEND_ONCE) [`#define MACH_MSG_TYPE_MAKE_SEND`](/documentation/DriverKit/MACH_MSG_TYPE_MAKE_SEND) [`#define MACH_MSG_TYPE_MAKE_SEND_ONCE`](/documentation/DriverKit/MACH_MSG_TYPE_MAKE_SEND_ONCE) [`#define MACH_MSG_TYPE_MOVE_RECEIVE`](/documentation/DriverKit/MACH_MSG_TYPE_MOVE_RECEIVE) [`#define MACH_MSG_TYPE_MOVE_SEND`](/documentation/DriverKit/MACH_MSG_TYPE_MOVE_SEND) [`#define MACH_MSG_TYPE_MOVE_SEND_ONCE`](/documentation/DriverKit/MACH_MSG_TYPE_MOVE_SEND_ONCE) [`#define MACH_MSG_TYPE_PORT_NONE`](/documentation/DriverKit/MACH_MSG_TYPE_PORT_NONE) [`#define MACH_MSG_VIRTUAL_COPY`](/documentation/DriverKit/MACH_MSG_VIRTUAL_COPY) [`#define MACH_PORT_NULL`](/documentation/DriverKit/MACH_PORT_NULL) [`#define MACRO_BEGIN`](/documentation/DriverKit/MACRO_BEGIN) [`#define MACRO_END`](/documentation/DriverKit/MACRO_END) [`#define MACRO_RETURN`](/documentation/DriverKit/MACRO_RETURN) [`#define NATIVE`](/documentation/DriverKit/NATIVE) [`#define NEVER`](/documentation/DriverKit/NEVER) [`#define NSEC_PER_SEC`](/documentation/DriverKit/NSEC_PER_SEC) [`#define OSMTypeID(type)`](/documentation/DriverKit/OSMTypeID) [`#define OSObjectSafeReleaseNULL(ptr)`](/documentation/DriverKit/OSObjectSafeReleaseNULL) [`#define OSSTR(cStr)`](/documentation/DriverKit/OSSTR) [`#define OSSwapBigToHostInt16(x)`](/documentation/DriverKit/OSSwapBigToHostInt16) [`#define OSSwapBigToHostInt32(x)`](/documentation/DriverKit/OSSwapBigToHostInt32) [`#define OSSwapBigToHostInt64(x)`](/documentation/DriverKit/OSSwapBigToHostInt64) [`#define OSSwapHostToBigInt16(x)`](/documentation/DriverKit/OSSwapHostToBigInt16) [`#define OSSwapHostToBigInt32(x)`](/documentation/DriverKit/OSSwapHostToBigInt32) [`#define OSSwapHostToBigInt64(x)`](/documentation/DriverKit/OSSwapHostToBigInt64) [`#define OSSwapHostToLittleInt16(x)`](/documentation/DriverKit/OSSwapHostToLittleInt16) [`#define OSSwapHostToLittleInt32(x)`](/documentation/DriverKit/OSSwapHostToLittleInt32) [`#define OSSwapHostToLittleInt64(x)`](/documentation/DriverKit/OSSwapHostToLittleInt64) [`#define OSSwapLittleToHostInt16(x)`](/documentation/DriverKit/OSSwapLittleToHostInt16) [`#define OSSwapLittleToHostInt32(x)`](/documentation/DriverKit/OSSwapLittleToHostInt32) [`#define OSSwapLittleToHostInt64(x)`](/documentation/DriverKit/OSSwapLittleToHostInt64) [`#define OSTypeID(type)`](/documentation/DriverKit/OSTypeID) [`#define OSTypeIDInst(inst)`](/documentation/DriverKit/OSTypeIDInst) [`#define PORTCOPYSEND`](/documentation/DriverKit/PORTCOPYSEND) [`#define PORTMAKESEND`](/documentation/DriverKit/PORTMAKESEND) [`#define PREFL_MEMOP_FAIL(__val, __type)`](/documentation/DriverKit/PREFL_MEMOP_FAIL) [`#define PREFL_MEMOP_PANIC(__val, __type)`](/documentation/DriverKit/PREFL_MEMOP_PANIC) [`#define QUEUE_HEAD_INITIALIZER(name)`](/documentation/DriverKit/QUEUE_HEAD_INITIALIZER) [`#define REMOTE`](/documentation/DriverKit/REMOTE) [`#define REPLY`](/documentation/DriverKit/REPLY) [`#define TARGET`](/documentation/DriverKit/TARGET) [`#define code_emask`](/documentation/DriverKit/code_emask) [`#define err_get_code(err)`](/documentation/DriverKit/err_get_code) [`#define err_get_sub(err)`](/documentation/DriverKit/err_get_sub) [`#define err_get_system(err)`](/documentation/DriverKit/err_get_system) [`#define err_max_system`](/documentation/DriverKit/err_max_system) [`#define err_none`](/documentation/DriverKit/err_none) [`#define err_sub(x)`](/documentation/DriverKit/err_sub) [`#define err_system(x)`](/documentation/DriverKit/err_system) [`#define iokit_common_err(return)`](/documentation/DriverKit/iokit_common_err) [`#define iokit_family_err(sub, return)`](/documentation/DriverKit/iokit_family_err) [`#define iokit_vendor_specific_err(return)`](/documentation/DriverKit/iokit_vendor_specific_err) [`#define kINQUIRY_Page83_IdentifierTypeFCNameIdentifier`](/documentation/DriverKit/kINQUIRY_Page83_IdentifierTypeFCNameIdentifier) [`#define kINQUIRY_Page83_IdentifierTypeUndefined`](/documentation/DriverKit/kINQUIRY_Page83_IdentifierTypeUndefined) [`#define kINQUIRY_VERSION_DESCRIPTOR_MaxCount`](/documentation/DriverKit/kINQUIRY_VERSION_DESCRIPTOR_MaxCount) [`#define kIOAllCPUInitializedKey`](/documentation/DriverKit/kIOAllCPUInitializedKey) [`#define kIOAppPowerStateInterest`](/documentation/DriverKit/kIOAppPowerStateInterest) [`#define kIOAudioPlane`](/documentation/DriverKit/kIOAudioPlane) [`#define kIOBootDeviceKey`](/documentation/DriverKit/kIOBootDeviceKey) [`#define kIOBootDevicePathKey`](/documentation/DriverKit/kIOBootDevicePathKey) [`#define kIOBootDeviceSizeKey`](/documentation/DriverKit/kIOBootDeviceSizeKey) [`#define kIOBundleResourceFileKey`](/documentation/DriverKit/kIOBundleResourceFileKey) [`#define kIOBusBadgeKey`](/documentation/DriverKit/kIOBusBadgeKey) [`#define kIOBusyInterest`](/documentation/DriverKit/kIOBusyInterest) [`#define kIOCFPlugInTypesKey`](/documentation/DriverKit/kIOCFPlugInTypesKey) [`#define kIOCatalogueKey`](/documentation/DriverKit/kIOCatalogueKey) [`#define kIOClassKey`](/documentation/DriverKit/kIOClassKey) [`#define kIOCommandPoolSizeKey`](/documentation/DriverKit/kIOCommandPoolSizeKey) [`#define kIOCompatibilityMatchKey`](/documentation/DriverKit/kIOCompatibilityMatchKey) [`#define kIOCompatibilityPropertiesKey`](/documentation/DriverKit/kIOCompatibilityPropertiesKey) [`#define kIODEXTMatchCountKey`](/documentation/DriverKit/kIODEXTMatchCountKey) [`#define kIODTNVRAMPanicInfoKey`](/documentation/DriverKit/kIODTNVRAMPanicInfoKey) [`#define kIODefaultMatchCategoryKey`](/documentation/DriverKit/kIODefaultMatchCategoryKey) [`#define kIODeviceIconKey`](/documentation/DriverKit/kIODeviceIconKey) [`#define kIODeviceTreePlane`](/documentation/DriverKit/kIODeviceTreePlane) [`#define kIODriverKitEntitlementKey`](/documentation/DriverKit/kIODriverKitEntitlementKey) [`#define kIODriverKitHIDFamilyDeviceEntitlementKey`](/documentation/DriverKit/kIODriverKitHIDFamilyDeviceEntitlementKey) [`#define kIODriverKitHIDFamilyEventServiceEntitlementKey`](/documentation/DriverKit/kIODriverKitHIDFamilyEventServiceEntitlementKey) [`#define kIODriverKitHIDTransportEntitlementKey`](/documentation/DriverKit/kIODriverKitHIDTransportEntitlementKey) [`#define kIODriverKitRequiredEntitlementsKey`](/documentation/DriverKit/kIODriverKitRequiredEntitlementsKey) [`#define kIODriverKitTestDriverEntitlementKey`](/documentation/DriverKit/kIODriverKitTestDriverEntitlementKey) [`#define kIODriverKitTransportBuiltinEntitlementKey`](/documentation/DriverKit/kIODriverKitTransportBuiltinEntitlementKey) [`#define kIODriverKitUSBTransportEntitlementKey`](/documentation/DriverKit/kIODriverKitUSBTransportEntitlementKey) [`#define kIODriverKitUserClientEntitlementAdministratorKey`](/documentation/DriverKit/kIODriverKitUserClientEntitlementAdministratorKey) [`#define kIODriverKitUserClientEntitlementAllowAnyKey`](/documentation/DriverKit/kIODriverKitUserClientEntitlementAllowAnyKey) [`#define kIODriverKitUserClientEntitlementAllowThirdPartyUserClientsKey`](/documentation/DriverKit/kIODriverKitUserClientEntitlementAllowThirdPartyUserClientsKey) [`#define kIODriverKitUserClientEntitlementCommunicatesWithDriversKey`](/documentation/DriverKit/kIODriverKitUserClientEntitlementCommunicatesWithDriversKey) [`#define kIODriverKitUserClientEntitlementsKey`](/documentation/DriverKit/kIODriverKitUserClientEntitlementsKey) [`#define kIOFireWirePlane`](/documentation/DriverKit/kIOFireWirePlane) [`#define kIOFirstMatchNotification`](/documentation/DriverKit/kIOFirstMatchNotification) [`#define kIOFirstPublishNotification`](/documentation/DriverKit/kIOFirstPublishNotification) [`#define kIOGeneralInterest`](/documentation/DriverKit/kIOGeneralInterest) [`#define kIOHistogramScaleExponential`](/documentation/DriverKit/kIOHistogramScaleExponential) [`#define kIOHistogramScaleLinear`](/documentation/DriverKit/kIOHistogramScaleLinear) [`#define kIOIconKey`](/documentation/DriverKit/kIOIconKey) [`#define kIOKitBuildVersionKey`](/documentation/DriverKit/kIOKitBuildVersionKey) [`#define kIOKitDebugKey`](/documentation/DriverKit/kIOKitDebugKey) [`#define kIOKitDiagnosticsKey`](/documentation/DriverKit/kIOKitDiagnosticsKey) [`#define kIOLocationMatchKey`](/documentation/DriverKit/kIOLocationMatchKey) [`#define kIOMapperIDKey`](/documentation/DriverKit/kIOMapperIDKey) [`#define kIOMatchCategoryKey`](/documentation/DriverKit/kIOMatchCategoryKey) [`#define kIOMatchDeferKey`](/documentation/DriverKit/kIOMatchDeferKey) [`#define kIOMatchedNotification`](/documentation/DriverKit/kIOMatchedNotification) [`#define kIOMatchedPersonalityKey`](/documentation/DriverKit/kIOMatchedPersonalityKey) [`#define kIOMatchedServiceCountKey`](/documentation/DriverKit/kIOMatchedServiceCountKey) [`#define kIOMaximumBlockCountReadKey`](/documentation/DriverKit/kIOMaximumBlockCountReadKey) [`#define kIOMaximumBlockCountWriteKey`](/documentation/DriverKit/kIOMaximumBlockCountWriteKey) [`#define kIOMaximumByteCountReadKey`](/documentation/DriverKit/kIOMaximumByteCountReadKey) [`#define kIOMaximumByteCountWriteKey`](/documentation/DriverKit/kIOMaximumByteCountWriteKey) [`#define kIOMaximumPriorityCountKey`](/documentation/DriverKit/kIOMaximumPriorityCountKey) [`#define kIOMaximumSegmentAddressableBitCountKey`](/documentation/DriverKit/kIOMaximumSegmentAddressableBitCountKey) [`#define kIOMaximumSegmentByteCountReadKey`](/documentation/DriverKit/kIOMaximumSegmentByteCountReadKey) [`#define kIOMaximumSegmentByteCountWriteKey`](/documentation/DriverKit/kIOMaximumSegmentByteCountWriteKey) [`#define kIOMaximumSegmentCountReadKey`](/documentation/DriverKit/kIOMaximumSegmentCountReadKey) [`#define kIOMaximumSegmentCountWriteKey`](/documentation/DriverKit/kIOMaximumSegmentCountWriteKey) [`#define kIOMaximumSwapWriteKey`](/documentation/DriverKit/kIOMaximumSwapWriteKey) [`#define kIOMinimumSaturationByteCountKey`](/documentation/DriverKit/kIOMinimumSaturationByteCountKey) [`#define kIOMinimumSegmentAlignmentByteCountKey`](/documentation/DriverKit/kIOMinimumSegmentAlignmentByteCountKey) [`#define kIONVRAMActivateCSRConfigPropertyKey`](/documentation/DriverKit/kIONVRAMActivateCSRConfigPropertyKey) [`#define kIONVRAMBootArgsKey`](/documentation/DriverKit/kIONVRAMBootArgsKey) [`#define kIONVRAMDeletePropertyKey`](/documentation/DriverKit/kIONVRAMDeletePropertyKey) [`#define kIONVRAMDeletePropertyKeyWRet`](/documentation/DriverKit/kIONVRAMDeletePropertyKeyWRet) [`#define kIONVRAMReadAccessKey`](/documentation/DriverKit/kIONVRAMReadAccessKey) [`#define kIONVRAMSyncNowPropertyKey`](/documentation/DriverKit/kIONVRAMSyncNowPropertyKey) [`#define kIONVRAMSystemAllowKey`](/documentation/DriverKit/kIONVRAMSystemAllowKey) [`#define kIONVRAMWriteAccessKey`](/documentation/DriverKit/kIONVRAMWriteAccessKey) [`#define kIONameMatchKey`](/documentation/DriverKit/kIONameMatchKey) [`#define kIONameMatchedKey`](/documentation/DriverKit/kIONameMatchedKey) [`#define kIOParentMatchKey`](/documentation/DriverKit/kIOParentMatchKey) [`#define kIOPathKey`](/documentation/DriverKit/kIOPathKey) [`#define kIOPathMatchKey`](/documentation/DriverKit/kIOPathMatchKey) [`#define kIOPlatformDeviceMessageKey`](/documentation/DriverKit/kIOPlatformDeviceMessageKey) [`#define kIOPlatformSerialNumberKey`](/documentation/DriverKit/kIOPlatformSerialNumberKey) [`#define kIOPlatformUUIDKey`](/documentation/DriverKit/kIOPlatformUUIDKey) [`#define kIOPowerPlane`](/documentation/DriverKit/kIOPowerPlane) [`#define kIOPriorityPowerStateInterest`](/documentation/DriverKit/kIOPriorityPowerStateInterest) [`#define kIOProbeScoreKey`](/documentation/DriverKit/kIOProbeScoreKey) [`#define kIOPropertyAESCBCKey`](/documentation/DriverKit/kIOPropertyAESCBCKey) [`#define kIOPropertyAESXEXKey`](/documentation/DriverKit/kIOPropertyAESXEXKey) [`#define kIOPropertyAESXTSKey`](/documentation/DriverKit/kIOPropertyAESXTSKey) [`#define kIOPropertyBytesPerPhysicalSectorKey`](/documentation/DriverKit/kIOPropertyBytesPerPhysicalSectorKey) [`#define kIOPropertyControllerCharacteristicsKey`](/documentation/DriverKit/kIOPropertyControllerCharacteristicsKey) [`#define kIOPropertyCylinderCountKey`](/documentation/DriverKit/kIOPropertyCylinderCountKey) [`#define kIOPropertyDeviceCharacteristicsKey`](/documentation/DriverKit/kIOPropertyDeviceCharacteristicsKey) [`#define kIOPropertyEncryptionTypeKey`](/documentation/DriverKit/kIOPropertyEncryptionTypeKey) [`#define kIOPropertyExistsMatchKey`](/documentation/DriverKit/kIOPropertyExistsMatchKey) [`#define kIOPropertyExternalKey`](/documentation/DriverKit/kIOPropertyExternalKey) [`#define kIOPropertyFibreChannelALPAKey`](/documentation/DriverKit/kIOPropertyFibreChannelALPAKey) [`#define kIOPropertyFibreChannelAddressIdentifierKey`](/documentation/DriverKit/kIOPropertyFibreChannelAddressIdentifierKey) [`#define kIOPropertyFibreChannelCableDescriptionCopperKey`](/documentation/DriverKit/kIOPropertyFibreChannelCableDescriptionCopperKey) [`#define kIOPropertyFibreChannelCableDescriptionFiberOpticKey`](/documentation/DriverKit/kIOPropertyFibreChannelCableDescriptionFiberOpticKey) [`#define kIOPropertyFibreChannelCableDescriptionKey`](/documentation/DriverKit/kIOPropertyFibreChannelCableDescriptionKey) [`#define kIOPropertyFibreChannelNodeWorldWideNameKey`](/documentation/DriverKit/kIOPropertyFibreChannelNodeWorldWideNameKey) [`#define kIOPropertyFibreChannelPortWorldWideNameKey`](/documentation/DriverKit/kIOPropertyFibreChannelPortWorldWideNameKey) [`#define kIOPropertyHeadCountKey`](/documentation/DriverKit/kIOPropertyHeadCountKey) [`#define kIOPropertyHiSup`](/documentation/DriverKit/kIOPropertyHiSup) [`#define kIOPropertyInterconnectFileKey`](/documentation/DriverKit/kIOPropertyInterconnectFileKey) [`#define kIOPropertyInterconnectRAMKey`](/documentation/DriverKit/kIOPropertyInterconnectRAMKey) [`#define kIOPropertyInternalExternalKey`](/documentation/DriverKit/kIOPropertyInternalExternalKey) [`#define kIOPropertyInternalKey`](/documentation/DriverKit/kIOPropertyInternalKey) [`#define kIOPropertyInvalidStartupDiskKey`](/documentation/DriverKit/kIOPropertyInvalidStartupDiskKey) [`#define kIOPropertyLogicalBlockSizeKey`](/documentation/DriverKit/kIOPropertyLogicalBlockSizeKey) [`#define kIOPropertyLowPowerModeKey`](/documentation/DriverKit/kIOPropertyLowPowerModeKey) [`#define kIOPropertyMatchKey`](/documentation/DriverKit/kIOPropertyMatchKey) [`#define kIOPropertyMediumRotationRateKey`](/documentation/DriverKit/kIOPropertyMediumRotationRateKey) [`#define kIOPropertyMediumTypeKey`](/documentation/DriverKit/kIOPropertyMediumTypeKey) [`#define kIOPropertyMediumTypeRotationalKey`](/documentation/DriverKit/kIOPropertyMediumTypeRotationalKey) [`#define kIOPropertyMediumTypeSolidStateKey`](/documentation/DriverKit/kIOPropertyMediumTypeSolidStateKey) [`#define kIOPropertyPhysicalBlockSizeKey`](/documentation/DriverKit/kIOPropertyPhysicalBlockSizeKey) [`#define kIOPropertyPhysicalInterconnectLocationKey`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectLocationKey) [`#define kIOPropertyPhysicalInterconnectTypeATA`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeATA) [`#define kIOPropertyPhysicalInterconnectTypeATAPI`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeATAPI) [`#define kIOPropertyPhysicalInterconnectTypeAppleFabric`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeAppleFabric) [`#define kIOPropertyPhysicalInterconnectTypeFibreChannel`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeFibreChannel) [`#define kIOPropertyPhysicalInterconnectTypeFireWire`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeFireWire) [`#define kIOPropertyPhysicalInterconnectTypeKey`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeKey) [`#define kIOPropertyPhysicalInterconnectTypePCI`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypePCI) [`#define kIOPropertyPhysicalInterconnectTypePCIExpress`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypePCIExpress) [`#define kIOPropertyPhysicalInterconnectTypeSCSIParallel`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeSCSIParallel) [`#define kIOPropertyPhysicalInterconnectTypeSecureDigital`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeSecureDigital) [`#define kIOPropertyPhysicalInterconnectTypeSerialATA`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeSerialATA) [`#define kIOPropertyPhysicalInterconnectTypeSerialAttachedSCSI`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeSerialAttachedSCSI) [`#define kIOPropertyPhysicalInterconnectTypeUSB`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeUSB) [`#define kIOPropertyPhysicalInterconnectTypeVirtual`](/documentation/DriverKit/kIOPropertyPhysicalInterconnectTypeVirtual) [`#define kIOPropertyPortDescriptionKey`](/documentation/DriverKit/kIOPropertyPortDescriptionKey) [`#define kIOPropertyPortSpeed10GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed10GigabitKey) [`#define kIOPropertyPortSpeed12GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed12GigabitKey) [`#define kIOPropertyPortSpeed16GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed16GigabitKey) [`#define kIOPropertyPortSpeed1GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed1GigabitKey) [`#define kIOPropertyPortSpeed1_5GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed1_5GigabitKey) [`#define kIOPropertyPortSpeed2GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed2GigabitKey) [`#define kIOPropertyPortSpeed3GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed3GigabitKey) [`#define kIOPropertyPortSpeed40GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed40GigabitKey) [`#define kIOPropertyPortSpeed4GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed4GigabitKey) [`#define kIOPropertyPortSpeed6GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed6GigabitKey) [`#define kIOPropertyPortSpeed8GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeed8GigabitKey) [`#define kIOPropertyPortSpeedAutomatic10GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic10GigabitKey) [`#define kIOPropertyPortSpeedAutomatic1GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic1GigabitKey) [`#define kIOPropertyPortSpeedAutomatic1_5GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic1_5GigabitKey) [`#define kIOPropertyPortSpeedAutomatic2GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic2GigabitKey) [`#define kIOPropertyPortSpeedAutomatic3GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic3GigabitKey) [`#define kIOPropertyPortSpeedAutomatic4GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic4GigabitKey) [`#define kIOPropertyPortSpeedAutomatic6GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic6GigabitKey) [`#define kIOPropertyPortSpeedAutomatic8GigabitKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomatic8GigabitKey) [`#define kIOPropertyPortSpeedAutomaticKey`](/documentation/DriverKit/kIOPropertyPortSpeedAutomaticKey) [`#define kIOPropertyPortSpeedKey`](/documentation/DriverKit/kIOPropertyPortSpeedKey) [`#define kIOPropertyPortStatusKey`](/documentation/DriverKit/kIOPropertyPortStatusKey) [`#define kIOPropertyPortStatusLinkEstablishedKey`](/documentation/DriverKit/kIOPropertyPortStatusLinkEstablishedKey) [`#define kIOPropertyPortStatusLinkFailedKey`](/documentation/DriverKit/kIOPropertyPortStatusLinkFailedKey) [`#define kIOPropertyPortStatusNoLinkEstablishedKey`](/documentation/DriverKit/kIOPropertyPortStatusNoLinkEstablishedKey) [`#define kIOPropertyPortTopologyAutomaticKey`](/documentation/DriverKit/kIOPropertyPortTopologyAutomaticKey) [`#define kIOPropertyPortTopologyAutomaticNLPortKey`](/documentation/DriverKit/kIOPropertyPortTopologyAutomaticNLPortKey) [`#define kIOPropertyPortTopologyAutomaticNPortKey`](/documentation/DriverKit/kIOPropertyPortTopologyAutomaticNPortKey) [`#define kIOPropertyPortTopologyKey`](/documentation/DriverKit/kIOPropertyPortTopologyKey) [`#define kIOPropertyPortTopologyNLPortKey`](/documentation/DriverKit/kIOPropertyPortTopologyNLPortKey) [`#define kIOPropertyPortTopologyNPortKey`](/documentation/DriverKit/kIOPropertyPortTopologyNPortKey) [`#define kIOPropertyProductNameKey`](/documentation/DriverKit/kIOPropertyProductNameKey) [`#define kIOPropertyProductRevisionLevelKey`](/documentation/DriverKit/kIOPropertyProductRevisionLevelKey) [`#define kIOPropertyProductSerialNumberKey`](/documentation/DriverKit/kIOPropertyProductSerialNumberKey) [`#define kIOPropertyProtocolCharacteristicsKey`](/documentation/DriverKit/kIOPropertyProtocolCharacteristicsKey) [`#define kIOPropertyRigidDiskGeometryKey`](/documentation/DriverKit/kIOPropertyRigidDiskGeometryKey) [`#define kIOPropertySASAddressKey`](/documentation/DriverKit/kIOPropertySASAddressKey) [`#define kIOPropertySATProductIdentification`](/documentation/DriverKit/kIOPropertySATProductIdentification) [`#define kIOPropertySATProductRevisonLevel`](/documentation/DriverKit/kIOPropertySATProductRevisonLevel) [`#define kIOPropertySATVendorIdentification`](/documentation/DriverKit/kIOPropertySATVendorIdentification) [`#define kIOPropertySCSIDomainIdentifierKey`](/documentation/DriverKit/kIOPropertySCSIDomainIdentifierKey) [`#define kIOPropertySCSIINQUIRYDeviceIdAssociation`](/documentation/DriverKit/kIOPropertySCSIINQUIRYDeviceIdAssociation) [`#define kIOPropertySCSIINQUIRYDeviceIdCodeSet`](/documentation/DriverKit/kIOPropertySCSIINQUIRYDeviceIdCodeSet) [`#define kIOPropertySCSIINQUIRYDeviceIdType`](/documentation/DriverKit/kIOPropertySCSIINQUIRYDeviceIdType) [`#define kIOPropertySCSIINQUIRYDeviceIdentification`](/documentation/DriverKit/kIOPropertySCSIINQUIRYDeviceIdentification) [`#define kIOPropertySCSIINQUIRYDeviceIdentifier`](/documentation/DriverKit/kIOPropertySCSIINQUIRYDeviceIdentifier) [`#define kIOPropertySCSIINQUIRYUnitSerialNumber`](/documentation/DriverKit/kIOPropertySCSIINQUIRYUnitSerialNumber) [`#define kIOPropertySCSIInitiatorIdentifierKey`](/documentation/DriverKit/kIOPropertySCSIInitiatorIdentifierKey) [`#define kIOPropertySCSILogicalUnitNumberKey`](/documentation/DriverKit/kIOPropertySCSILogicalUnitNumberKey) [`#define kIOPropertySCSIParallelSignalingTypeHVDKey`](/documentation/DriverKit/kIOPropertySCSIParallelSignalingTypeHVDKey) [`#define kIOPropertySCSIParallelSignalingTypeKey`](/documentation/DriverKit/kIOPropertySCSIParallelSignalingTypeKey) [`#define kIOPropertySCSIParallelSignalingTypeLVDKey`](/documentation/DriverKit/kIOPropertySCSIParallelSignalingTypeLVDKey) [`#define kIOPropertySCSIParallelSignalingTypeSEKey`](/documentation/DriverKit/kIOPropertySCSIParallelSignalingTypeSEKey) [`#define kIOPropertySCSIPeripheralDeviceType`](/documentation/DriverKit/kIOPropertySCSIPeripheralDeviceType) [`#define kIOPropertySCSIPeripheralDeviceTypeSize`](/documentation/DriverKit/kIOPropertySCSIPeripheralDeviceTypeSize) [`#define kIOPropertySCSIPortIdentifierKey`](/documentation/DriverKit/kIOPropertySCSIPortIdentifierKey) [`#define kIOPropertySCSIProductIdentification`](/documentation/DriverKit/kIOPropertySCSIProductIdentification) [`#define kIOPropertySCSIProductRevisionLevel`](/documentation/DriverKit/kIOPropertySCSIProductRevisionLevel) [`#define kIOPropertySCSIProtocolMultiInitKey`](/documentation/DriverKit/kIOPropertySCSIProtocolMultiInitKey) [`#define kIOPropertySCSITargetIdentifierKey`](/documentation/DriverKit/kIOPropertySCSITargetIdentifierKey) [`#define kIOPropertySCSIVendorIdentification`](/documentation/DriverKit/kIOPropertySCSIVendorIdentification) [`#define kIOPropertySectorCountPerTrackKey`](/documentation/DriverKit/kIOPropertySectorCountPerTrackKey) [`#define kIOPropertySupportedBDFeaturesKey`](/documentation/DriverKit/kIOPropertySupportedBDFeaturesKey) [`#define kIOPropertySupportedCDFeaturesKey`](/documentation/DriverKit/kIOPropertySupportedCDFeaturesKey) [`#define kIOPropertySupportedDVDFeaturesKey`](/documentation/DriverKit/kIOPropertySupportedDVDFeaturesKey) [`#define kIOPropertyTPGSInfo`](/documentation/DriverKit/kIOPropertyTPGSInfo) [`#define kIOPropertyTPGSInfoSize`](/documentation/DriverKit/kIOPropertyTPGSInfoSize) [`#define kIOPropertyTargetDiskModeKey`](/documentation/DriverKit/kIOPropertyTargetDiskModeKey) [`#define kIOPropertyVendorNameKey`](/documentation/DriverKit/kIOPropertyVendorNameKey) [`#define kIOProviderClassKey`](/documentation/DriverKit/kIOProviderClassKey) [`#define kIOPublishNotification`](/documentation/DriverKit/kIOPublishNotification) [`#define kIORegistryEntryAllowableSetPropertiesKey`](/documentation/DriverKit/kIORegistryEntryAllowableSetPropertiesKey) [`#define kIORegistryEntryDefaultLockingSetPropertiesKey`](/documentation/DriverKit/kIORegistryEntryDefaultLockingSetPropertiesKey) [`#define kIORegistryEntryIDKey`](/documentation/DriverKit/kIORegistryEntryIDKey) [`#define kIORegistryEntryPropertyKeysKey`](/documentation/DriverKit/kIORegistryEntryPropertyKeysKey) [`#define kIORegistryPlanesKey`](/documentation/DriverKit/kIORegistryPlanesKey) [`#define kIORematchCountKey`](/documentation/DriverKit/kIORematchCountKey) [`#define kIORematchPersonalityKey`](/documentation/DriverKit/kIORematchPersonalityKey) [`#define kIOReportCardinalMask`](/documentation/DriverKit/kIOReportCardinalMask) [`#define kIOReportCardinalShift`](/documentation/DriverKit/kIOReportCardinalShift) [`#define kIOReportCategoryDebug`](/documentation/DriverKit/kIOReportCategoryDebug) [`#define kIOReportCategoryField`](/documentation/DriverKit/kIOReportCategoryField) [`#define kIOReportCategoryPerformance`](/documentation/DriverKit/kIOReportCategoryPerformance) [`#define kIOReportCategoryPeripheral`](/documentation/DriverKit/kIOReportCategoryPeripheral) [`#define kIOReportCategoryPower`](/documentation/DriverKit/kIOReportCategoryPower) [`#define kIOReportCategoryTraffic`](/documentation/DriverKit/kIOReportCategoryTraffic) [`#define kIOReportChannelIDIdx`](/documentation/DriverKit/kIOReportChannelIDIdx) [`#define kIOReportChannelNameIdx`](/documentation/DriverKit/kIOReportChannelNameIdx) [`#define kIOReportChannelTypeIdx`](/documentation/DriverKit/kIOReportChannelTypeIdx) [`#define kIOReportExpBase`](/documentation/DriverKit/kIOReportExpBase) [`#define kIOReportExpZeroOffset`](/documentation/DriverKit/kIOReportExpZeroOffset) [`#define kIOReportInvalidCategory`](/documentation/DriverKit/kIOReportInvalidCategory) [`#define kIOReportInvalidIntValue`](/documentation/DriverKit/kIOReportInvalidIntValue) [`#define kIOReportInvalidValue`](/documentation/DriverKit/kIOReportInvalidValue) [`#define kIOReportLegendChannelsKey`](/documentation/DriverKit/kIOReportLegendChannelsKey) [`#define kIOReportLegendConfigKey`](/documentation/DriverKit/kIOReportLegendConfigKey) [`#define kIOReportLegendGroupNameKey`](/documentation/DriverKit/kIOReportLegendGroupNameKey) [`#define kIOReportLegendInfoKey`](/documentation/DriverKit/kIOReportLegendInfoKey) [`#define kIOReportLegendKey`](/documentation/DriverKit/kIOReportLegendKey) [`#define kIOReportLegendPublicKey`](/documentation/DriverKit/kIOReportLegendPublicKey) [`#define kIOReportLegendStateNamesKey`](/documentation/DriverKit/kIOReportLegendStateNamesKey) [`#define kIOReportLegendSubGroupNameKey`](/documentation/DriverKit/kIOReportLegendSubGroupNameKey) [`#define kIOReportLegendUnitKey`](/documentation/DriverKit/kIOReportLegendUnitKey) [`#define kIOReportScale16KiB`](/documentation/DriverKit/kIOReportScale16KiB) [`#define kIOReportScale1GHz`](/documentation/DriverKit/kIOReportScale1GHz) [`#define kIOReportScale24MHz`](/documentation/DriverKit/kIOReportScale24MHz) [`#define kIOReportScale4KiB`](/documentation/DriverKit/kIOReportScale4KiB) [`#define kIOReportScale8KiB`](/documentation/DriverKit/kIOReportScale8KiB) [`#define kIOReportScaleBits`](/documentation/DriverKit/kIOReportScaleBits) [`#define kIOReportScaleBytes`](/documentation/DriverKit/kIOReportScaleBytes) [`#define kIOReportScaleConstMask`](/documentation/DriverKit/kIOReportScaleConstMask) [`#define kIOReportScaleGiBytes`](/documentation/DriverKit/kIOReportScaleGiBytes) [`#define kIOReportScaleGibi`](/documentation/DriverKit/kIOReportScaleGibi) [`#define kIOReportScaleGiga`](/documentation/DriverKit/kIOReportScaleGiga) [`#define kIOReportScaleHWPageSize`](/documentation/DriverKit/kIOReportScaleHWPageSize) [`#define kIOReportScaleIECMask`](/documentation/DriverKit/kIOReportScaleIECMask) [`#define kIOReportScaleIECShift`](/documentation/DriverKit/kIOReportScaleIECShift) [`#define kIOReportScaleKiBytes`](/documentation/DriverKit/kIOReportScaleKiBytes) [`#define kIOReportScaleKibi`](/documentation/DriverKit/kIOReportScaleKibi) [`#define kIOReportScaleKilo`](/documentation/DriverKit/kIOReportScaleKilo) [`#define kIOReportScaleMachHWTicks`](/documentation/DriverKit/kIOReportScaleMachHWTicks) [`#define kIOReportScaleMebi`](/documentation/DriverKit/kIOReportScaleMebi) [`#define kIOReportScaleMega`](/documentation/DriverKit/kIOReportScaleMega) [`#define kIOReportScaleMiBytes`](/documentation/DriverKit/kIOReportScaleMiBytes) [`#define kIOReportScaleMicro`](/documentation/DriverKit/kIOReportScaleMicro) [`#define kIOReportScaleMilli`](/documentation/DriverKit/kIOReportScaleMilli) [`#define kIOReportScaleNano`](/documentation/DriverKit/kIOReportScaleNano) [`#define kIOReportScaleOneOver`](/documentation/DriverKit/kIOReportScaleOneOver) [`#define kIOReportScalePico`](/documentation/DriverKit/kIOReportScalePico) [`#define kIOReportScaleSIMask`](/documentation/DriverKit/kIOReportScaleSIMask) [`#define kIOReportScaleSIShift`](/documentation/DriverKit/kIOReportScaleSIShift) [`#define kIOReportScaleTebi`](/documentation/DriverKit/kIOReportScaleTebi) [`#define kIOReportScaleTera`](/documentation/DriverKit/kIOReportScaleTera) [`#define kIOReportScaleTiBytes`](/documentation/DriverKit/kIOReportScaleTiBytes) [`#define kIOReportScaleUnity`](/documentation/DriverKit/kIOReportScaleUnity) [`#define kIOReportUnit1GHzTicks`](/documentation/DriverKit/kIOReportUnit1GHzTicks) [`#define kIOReportUnit24MHzTicks`](/documentation/DriverKit/kIOReportUnit24MHzTicks) [`#define kIOReportUnitBits`](/documentation/DriverKit/kIOReportUnitBits) [`#define kIOReportUnitBytes`](/documentation/DriverKit/kIOReportUnitBytes) [`#define kIOReportUnitEvents`](/documentation/DriverKit/kIOReportUnitEvents) [`#define kIOReportUnitHWTicks`](/documentation/DriverKit/kIOReportUnitHWTicks) [`#define kIOReportUnitInstrs`](/documentation/DriverKit/kIOReportUnitInstrs) [`#define kIOReportUnitNone`](/documentation/DriverKit/kIOReportUnitNone) [`#define kIOReportUnitPackets`](/documentation/DriverKit/kIOReportUnitPackets) [`#define kIOReportUnit_GI`](/documentation/DriverKit/kIOReportUnit_GI) [`#define kIOReportUnit_GiB`](/documentation/DriverKit/kIOReportUnit_GiB) [`#define kIOReportUnit_J`](/documentation/DriverKit/kIOReportUnit_J) [`#define kIOReportUnit_KI`](/documentation/DriverKit/kIOReportUnit_KI) [`#define kIOReportUnit_KiB`](/documentation/DriverKit/kIOReportUnit_KiB) [`#define kIOReportUnit_MI`](/documentation/DriverKit/kIOReportUnit_MI) [`#define kIOReportUnit_MiB`](/documentation/DriverKit/kIOReportUnit_MiB) [`#define kIOReportUnit_TiB`](/documentation/DriverKit/kIOReportUnit_TiB) [`#define kIOReportUnit_mJ`](/documentation/DriverKit/kIOReportUnit_mJ) [`#define kIOReportUnit_ms`](/documentation/DriverKit/kIOReportUnit_ms) [`#define kIOReportUnit_nJ`](/documentation/DriverKit/kIOReportUnit_nJ) [`#define kIOReportUnit_ns`](/documentation/DriverKit/kIOReportUnit_ns) [`#define kIOReportUnit_pJ`](/documentation/DriverKit/kIOReportUnit_pJ) [`#define kIOReportUnit_s`](/documentation/DriverKit/kIOReportUnit_s) [`#define kIOReportUnit_uJ`](/documentation/DriverKit/kIOReportUnit_uJ) [`#define kIOReportUnit_us`](/documentation/DriverKit/kIOReportUnit_us) [`#define kIOResourceMatchKey`](/documentation/DriverKit/kIOResourceMatchKey) [`#define kIOResourceMatchedKey`](/documentation/DriverKit/kIOResourceMatchedKey) [`#define kIOResourcesClass`](/documentation/DriverKit/kIOResourcesClass) [`#define kIOResourcesSetPropertyKey`](/documentation/DriverKit/kIOResourcesSetPropertyKey) [`#define kIOServiceClass`](/documentation/DriverKit/kIOServiceClass) [`#define kIOServiceDEXTEntitlementsKey`](/documentation/DriverKit/kIOServiceDEXTEntitlementsKey) [`#define kIOServiceDefaultQueueName`](/documentation/DriverKit/kIOServiceDefaultQueueName) [`#define kIOServicePlane`](/documentation/DriverKit/kIOServicePlane) [`#define kIOStateNotificationEntitlementGetKey`](/documentation/DriverKit/kIOStateNotificationEntitlementGetKey) [`#define kIOStateNotificationEntitlementSetKey`](/documentation/DriverKit/kIOStateNotificationEntitlementSetKey) [`#define kIOStateNotificationItemCopyKey`](/documentation/DriverKit/kIOStateNotificationItemCopyKey) [`#define kIOStateNotificationItemCreateKey`](/documentation/DriverKit/kIOStateNotificationItemCreateKey) [`#define kIOStateNotificationItemSetKey`](/documentation/DriverKit/kIOStateNotificationItemSetKey) [`#define kIOStateNotificationNameKey`](/documentation/DriverKit/kIOStateNotificationNameKey) [`#define kIOSupportedPropertiesKey`](/documentation/DriverKit/kIOSupportedPropertiesKey) [`#define kIOSystemStateClamshellKey`](/documentation/DriverKit/kIOSystemStateClamshellKey) [`#define kIOSystemStateHaltDescriptionHaltStateKey`](/documentation/DriverKit/kIOSystemStateHaltDescriptionHaltStateKey) [`#define kIOSystemStateHaltDescriptionKey`](/documentation/DriverKit/kIOSystemStateHaltDescriptionKey) [`#define kIOSystemStatePowerSourceDescriptionACAttachedKey`](/documentation/DriverKit/kIOSystemStatePowerSourceDescriptionACAttachedKey) [`#define kIOSystemStatePowerSourceDescriptionKey`](/documentation/DriverKit/kIOSystemStatePowerSourceDescriptionKey) [`#define kIOSystemStateSleepDescriptionHibernateStateKey`](/documentation/DriverKit/kIOSystemStateSleepDescriptionHibernateStateKey) [`#define kIOSystemStateSleepDescriptionKey`](/documentation/DriverKit/kIOSystemStateSleepDescriptionKey) [`#define kIOSystemStateSleepDescriptionReasonKey`](/documentation/DriverKit/kIOSystemStateSleepDescriptionReasonKey) [`#define kIOSystemStateWakeDescriptionContinuousTimeOffsetKey`](/documentation/DriverKit/kIOSystemStateWakeDescriptionContinuousTimeOffsetKey) [`#define kIOSystemStateWakeDescriptionKey`](/documentation/DriverKit/kIOSystemStateWakeDescriptionKey) [`#define kIOSystemStateWakeDescriptionWakeReasonKey`](/documentation/DriverKit/kIOSystemStateWakeDescriptionWakeReasonKey) [`#define kIOTerminatedNotification`](/documentation/DriverKit/kIOTerminatedNotification) [`#define kIOUSBPlane`](/documentation/DriverKit/kIOUSBPlane) [`#define kIOUserClassKey`](/documentation/DriverKit/kIOUserClassKey) [`#define kIOUserClassesKey`](/documentation/DriverKit/kIOUserClassesKey) [`#define kIOUserClientClassKey`](/documentation/DriverKit/kIOUserClientClassKey) [`#define kIOUserClientCreatorKey`](/documentation/DriverKit/kIOUserClientCreatorKey) [`#define kIOUserClientCrossEndianCompatibleKey`](/documentation/DriverKit/kIOUserClientCrossEndianCompatibleKey) [`#define kIOUserClientCrossEndianKey`](/documentation/DriverKit/kIOUserClientCrossEndianKey) [`#define kIOUserClientDefaultLockingKey`](/documentation/DriverKit/kIOUserClientDefaultLockingKey) [`#define kIOUserClientDefaultLockingSetPropertiesKey`](/documentation/DriverKit/kIOUserClientDefaultLockingSetPropertiesKey) [`#define kIOUserClientDefaultLockingSingleThreadExternalMethodKey`](/documentation/DriverKit/kIOUserClientDefaultLockingSingleThreadExternalMethodKey) [`#define kIOUserClientEntitlementsKey`](/documentation/DriverKit/kIOUserClientEntitlementsKey) [`#define kIOUserClientQueueNameExternalMethod`](/documentation/DriverKit/kIOUserClientQueueNameExternalMethod) [`#define kIOUserClientSharedInstanceKey`](/documentation/DriverKit/kIOUserClientSharedInstanceKey) [`#define kIOUserServerCDHashKey`](/documentation/DriverKit/kIOUserServerCDHashKey) [`#define kIOUserServerOneProcessKey`](/documentation/DriverKit/kIOUserServerOneProcessKey) [`#define kIOUserServerPreserveUserspaceRebootKey`](/documentation/DriverKit/kIOUserServerPreserveUserspaceRebootKey) [`#define kIOUserServicePropertiesKey`](/documentation/DriverKit/kIOUserServicePropertiesKey) [`#define kIOUserUserClientKey`](/documentation/DriverKit/kIOUserUserClientKey) [`#define kIOWillTerminateNotification`](/documentation/DriverKit/kIOWillTerminateNotification) [`#define kOSBuildVersionKey`](/documentation/DriverKit/kOSBuildVersionKey) [`#define kREPORT_CAPACITY_16_MaximumLBA`](/documentation/DriverKit/kREPORT_CAPACITY_16_MaximumLBA) [`#define kREPORT_CAPACITY_MaximumLBA`](/documentation/DriverKit/kREPORT_CAPACITY_MaximumLBA) [`#define qe_element(qe, type, field)`](/documentation/DriverKit/qe_element) [`#define qe_foreach(qe, head)`](/documentation/DriverKit/qe_foreach) [`#define qe_foreach_element(elt, head, field)`](/documentation/DriverKit/qe_foreach_element) [`#define qe_foreach_element_safe(elt, head, field)`](/documentation/DriverKit/qe_foreach_element_safe) [`#define qe_foreach_safe(qe, head)`](/documentation/DriverKit/qe_foreach_safe) [`#define queue_assign(to, from, type, field)`](/documentation/DriverKit/queue_assign) [`#define queue_chain_init(q)`](/documentation/DriverKit/queue_chain_init) [`#define queue_empty(q)`](/documentation/DriverKit/queue_empty) [`#define queue_end(q, qe)`](/documentation/DriverKit/queue_end) [`#define queue_enter(head, elt, type, field)`](/documentation/DriverKit/queue_enter) [`#define queue_enter_first(head, elt, type, field)`](/documentation/DriverKit/queue_enter_first) [`#define queue_field(head, thing, type, field)`](/documentation/DriverKit/queue_field) [`#define queue_first(q)`](/documentation/DriverKit/queue_first) [`#define queue_head_init(q)`](/documentation/DriverKit/queue_head_init) [`#define queue_init(q)`](/documentation/DriverKit/queue_init) [`#define queue_insert_after(head, elt, cur, type, field)`](/documentation/DriverKit/queue_insert_after) [`#define queue_insert_before(head, elt, cur, type, field)`](/documentation/DriverKit/queue_insert_before) [`#define queue_iterate(head, elt, type, field)`](/documentation/DriverKit/queue_iterate) [`#define queue_last(q)`](/documentation/DriverKit/queue_last) [`#define queue_new_head(old, new, type, field)`](/documentation/DriverKit/queue_new_head) [`#define queue_next(qc)`](/documentation/DriverKit/queue_next) [`#define queue_prev(qc)`](/documentation/DriverKit/queue_prev) [`#define queue_remove(head, elt, type, field)`](/documentation/DriverKit/queue_remove) [`#define queue_remove_first(head, entry, type, field)`](/documentation/DriverKit/queue_remove_first) [`#define queue_remove_last(head, entry, type, field)`](/documentation/DriverKit/queue_remove_last) [`#define sub_emask`](/documentation/DriverKit/sub_emask) [`#define sub_iokit_HDA`](/documentation/DriverKit/sub_iokit_HDA) [`#define sub_iokit_acpi`](/documentation/DriverKit/sub_iokit_acpi) [`#define sub_iokit_acpiec`](/documentation/DriverKit/sub_iokit_acpiec) [`#define sub_iokit_ahci`](/documentation/DriverKit/sub_iokit_ahci) [`#define sub_iokit_apfs`](/documentation/DriverKit/sub_iokit_apfs) [`#define sub_iokit_appleembeddedsleepwakehandler`](/documentation/DriverKit/sub_iokit_appleembeddedsleepwakehandler) [`#define sub_iokit_appleppm`](/documentation/DriverKit/sub_iokit_appleppm) [`#define sub_iokit_arc`](/documentation/DriverKit/sub_iokit_arc) [`#define sub_iokit_audio_video`](/documentation/DriverKit/sub_iokit_audio_video) [`#define sub_iokit_baseband`](/documentation/DriverKit/sub_iokit_baseband) [`#define sub_iokit_block_storage`](/documentation/DriverKit/sub_iokit_block_storage) [`#define sub_iokit_bluetooth`](/documentation/DriverKit/sub_iokit_bluetooth) [`#define sub_iokit_cec`](/documentation/DriverKit/sub_iokit_cec) [`#define sub_iokit_common`](/documentation/DriverKit/sub_iokit_common) [`#define sub_iokit_firewire`](/documentation/DriverKit/sub_iokit_firewire) [`#define sub_iokit_graphics`](/documentation/DriverKit/sub_iokit_graphics) [`#define sub_iokit_graphics_acceleration`](/documentation/DriverKit/sub_iokit_graphics_acceleration) [`#define sub_iokit_hidsystem`](/documentation/DriverKit/sub_iokit_hidsystem) [`#define sub_iokit_hsic`](/documentation/DriverKit/sub_iokit_hsic) [`#define sub_iokit_keystore`](/documentation/DriverKit/sub_iokit_keystore) [`#define sub_iokit_networking`](/documentation/DriverKit/sub_iokit_networking) [`#define sub_iokit_platform`](/documentation/DriverKit/sub_iokit_platform) [`#define sub_iokit_pmu`](/documentation/DriverKit/sub_iokit_pmu) [`#define sub_iokit_powermanagement`](/documentation/DriverKit/sub_iokit_powermanagement) [`#define sub_iokit_reserved`](/documentation/DriverKit/sub_iokit_reserved) [`#define sub_iokit_scsi`](/documentation/DriverKit/sub_iokit_scsi) [`#define sub_iokit_sdio`](/documentation/DriverKit/sub_iokit_sdio) [`#define sub_iokit_smbus`](/documentation/DriverKit/sub_iokit_smbus) [`#define sub_iokit_thunderbolt`](/documentation/DriverKit/sub_iokit_thunderbolt) [`#define sub_iokit_timesync_avb`](/documentation/DriverKit/sub_iokit_timesync_avb) [`#define sub_iokit_usb`](/documentation/DriverKit/sub_iokit_usb) [`#define sub_iokit_usbaudio`](/documentation/DriverKit/sub_iokit_usbaudio) [`#define sub_iokit_vendor_specific`](/documentation/DriverKit/sub_iokit_vendor_specific) [`#define sub_iokit_wirelesscharging`](/documentation/DriverKit/sub_iokit_wirelesscharging) [`#define sub_iokit_wlan`](/documentation/DriverKit/sub_iokit_wlan) [`#define sys_iokit`](/documentation/DriverKit/sys_iokit) [`#define system_emask`](/documentation/DriverKit/system_emask) --- Copyright © 2026 Apple Inc. 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