#include <IOKit/ndrvsupport/IOMacOSTypes.h>
IOKit/ndrvsupport/IOMacOSTypes.h Kernel.framework 48 typedefs · 12 structs · 10 enums · 8 macros
underlying type unsigned int
typedef unsigned char Byte typedef signed char SignedByte typedef Ptr typedef char *Ptr typedef unsigned int FourCharCode size 8, align 2
short top short left short bottom short right
underlying type unsigned int
Numeric version part of 'vers' resource
size 4, align 1
UInt8 majorRev 1st part of version number in BCD UInt8 minorAndBugRev 2nd & 3rd part of version number share a byte UInt8 stage stage code: dev, alpha, beta, final UInt8 nonRelRev revision level of non-released version
typedef struct NumVersion NumVersion typedef struct OpaqueRef *KernelID typedef void *LogicalAddress underlying type unsigned int
typedef unsigned char Str31[32] #define kPropertyName "name" #define kPropertyCompatible "compatible" #define kPropertyDriverPtr "driver-ptr" #define kPropertyDriverDesc "driver-description" #define kPropertyReg "reg" #define kPropertyAAPLAddress "AAPL,address" #define kPropertyMatching "matching" #########################################################
Descriptor for Drivers and NDRVs
#########################################################
Driver Typing Information Used to Match Drivers With Devices
size 36, align 1
Str31 nameInfoStr Driver Name/Info String NumVersion version Driver Version Number
typedef struct DriverType DriverType OS Runtime Information Used to Setup and Maintain a Driver's Runtime Environment
typedef IOOptionBits RuntimeOptions underlying type unsigned int
kDriverIsLoadedUponDiscovery 1 auto-load driver when discovered kDriverIsOpenedUponLoad 2 auto-open driver when loaded kDriverIsUnderExpertControl 4 I/O expert handles loads/opens kDriverIsConcurrent 8 supports concurrent requests kDriverQueuesIOPB 16 device manager doesn't queue IOPB kDriverIsLoadedAtBoot 32 Driver is loaded at the boot time kDriverIsForVirtualDevice 64 Driver is for a virtual Device kDriverSupportDMSuspendAndResume 128 Driver supports Device Manager Suspend and Resume command
size 68, align 4
RuntimeOptions driverRuntime Options for OS Runtime Str31 driverName Driver's name to the OS UInt32 [8]driverDescReserved Reserved area
typedef struct DriverOSRuntime DriverOSRuntime OS Service Information Used To Declare What APIs a Driver Supports
typedef UInt32 ServiceCount size 12, align 4
OSType serviceCategory Service Category Name OSType serviceType Type within Category NumVersion serviceVersion Version of service
typedef struct DriverServiceInfo DriverServiceInfo typedef struct DriverOSService DriverOSService underlying type unsigned int
kServiceCategoryDisplay 1684632432 Display Manager kServiceCategoryOpenTransport 1869898094 Open Transport kServiceCategoryBlockStorage 1651273579 Block Storage kServiceCategoryNdrvDriver 1852076662 Generic Native Driver kServiceCategoryScsiSIM 1935897449 SCSI kServiceCategoryFileManager 1718185061 File Manager kServiceCategoryIDE 1768187181 ide kServiceCategoryADB 1633968685 adb kServiceCategoryPCI 1885563181 pci bus kServiceCategoryDFM 1684434221 Nu Bus DFM kServiceCategoryMotherBoard 1836212836 mother Board kServiceCategoryKeyboard 1803117156 Keyboard kServiceCategoryPointing 1886349684 Pointing kServiceCategoryRTC 1920230189 RTC kServiceCategoryNVRAM 1852989805 NVRAM kServiceCategorySound 1936682596 Sound (1/3/96 MCS) kServiceCategoryPowerMgt 1885826420 Power Management kServiceCategoryGeneric 1734700658 Generic Service Category to receive general Events
Ndrv ServiceCategory Types
underlying type unsigned int
kNdrvTypeIsGeneric 1734700658 generic kNdrvTypeIsVideo 1986618479 video kNdrvTypeIsBlockStorage 1651273579 block storage kNdrvTypeIsNetworking 1852142711 networking kNdrvTypeIsSerial 1936028268 serial kNdrvTypeIsParallel 1885434476 parallel kNdrvTypeIsSound 1936682596 sound kNdrvTypeIsBusBridge 1651663975
typedef UInt32 DriverDescVersion The Driver Description
underlying type unsigned int
kInitialDriverDescriptor 0 kVersionOneDriverDescriptor 1
underlying type unsigned int
kTheDescriptionSignature 1836344682 kDriverDescriptionSignature 1885627763
typedef struct DriverDescription DriverDescription size 6, align 2
unsigned short red magnitude of red component unsigned short green magnitude of green component unsigned short blue magnitude of blue component
typedef struct RGBColor RGBColor size 8, align 2
short value index or other value RGBColor rgb true color
typedef struct ColorSpec ColorSpec size 14, align 2
short gVersion gamma version number short gType gamma data type short gFormulaSize Formula data size short gChanCnt number of channels of data short gDataCnt number of values/channel short gDataWidth bits/corrected value (data packed to next larger byte size) short[1] gFormulaData data for formulas followed by gamma values
typedef struct GammaTbl GammaTbl typedef struct RegEntryID RegEntryID typedef RegEntryID * RegEntryIDPtr underlying type unsigned int
kIONDRVOpenCommand 128 kIONDRVCloseCommand 129 kIONDRVReadCommand 130 kIONDRVWriteCommand 131 kIONDRVControlCommand 132 kIONDRVStatusCommand 133 kIONDRVKillIOCommand 134 kIONDRVInitializeCommand 135 init driver and device kIONDRVFinalizeCommand 136 shutdown driver and device kIONDRVReplaceCommand 137 replace an old driver kIONDRVSupersededCommand 138 prepare to be replaced by a new driver
underlying type unsigned int
kIONDRVSynchronousIOCommandKind 1 kIONDRVAsynchronousIOCommandKind 2 kIONDRVImmediateIOCommandKind 4
Generated 2026-09-08 from the headers of one specific machine (macOS 26.4.1, SDK 26.4, arm64) — not official documentation. About & caveats