#include <IOKit/graphics/IOFramebuffer.h>

IOKit/graphics/IOFramebuffer.h Kernel.framework

includes: IOKit/IOService.h, IOKit/IOInterruptEventSource.h, IOKit/IOLib.h, IOKit/graphics/IOGraphicsDevice.h, IOKit/graphics/IOFramebufferShared.h

9 enums · 7 typedefs · 4 macros · 3 structs · 1 function

macroIOFRAMEBUFFER_REV

#define IOFRAMEBUFFER_REV 8

typedefCursorBlitProc

typedef void (*)(IOFramebuffer *, void *, volatile unsigned char *, unsigned int, unsigned int, unsigned int, int, int) CursorBlitProc;

typedefCursorRemoveProc

typedef void (*)(IOFramebuffer *, void *, volatile unsigned char *, unsigned int, int, int) CursorRemoveProc;

typedefIOFBCursorRef

typedef void * IOFBCursorRef

structIOFBCursorControlCallouts

size 136, align 8

IOReturn ()(void , void , IOHardwareCursorDescriptor , IOFBCursorRef)	setCursorImage
IOReturn ()(void , void *, SInt32, SInt32, bool)	setCursorState
UInt32[30]	reserved

typedefIOFBCursorControlCallouts

typedef struct IOFBCursorControlCallouts IOFBCursorControlCallouts

structIOFBCursorControlAttribute

size 144, align 8

void *	inst
void *	ref
const IOFBCursorControlCallouts *	callouts
UInt32[29]	reserved

typedefIOFBCursorControlAttribute

typedef struct IOFBCursorControlAttribute IOFBCursorControlAttribute

enum(anonymous)

clock & data values

underlying type unsigned int

kIODDCLow	0
kIODDCHigh	1
kIODDCTristate	2

enum(anonymous)

ddcBlockType constants

underlying type unsigned int

kIODDCBlockTypeEDID

EDID block type.

enum(anonymous)

ddcFlags constants

underlying type unsigned int

kIODDCForceRead

Force a new read of the EDID.

enum(anonymous)

underlying type unsigned int

kDisabledInterruptState	0
kEnabledInterruptState	1

typedefIOFBInterruptProc

typedef void (*IOFBInterruptProc)( OSObject * target, void * ref )

typedefIOFramebufferNotificationHandler

typedef IOReturn (*)(OSObject *, void *, IOFramebuffer *, IOIndex, void *) IOFramebufferNotificationHandler;

enum(anonymous)

IOFramebufferNotificationHandler events

underlying type unsigned int

kIOFBNotifyDisplayModeWillChange	1
kIOFBNotifyDisplayModeDidChange	2
kIOFBNotifyWillSleep	3
kIOFBNotifyDidWake	4
kIOFBNotifyDidPowerOff	5
kIOFBNotifyWillPowerOn	6
kIOFBNotifyDidSleep	5
kIOFBNotifyWillWake	6
kIOFBNotifyWillPowerOff	7
kIOFBNotifyDidPowerOn	8
kIOFBNotifyWillChangeSpeed	9
kIOFBNotifyDidChangeSpeed	10
kIOFBNotifyHDACodecWillPowerOn	11	since IOGRAPHICSTYPES_REV 68
kIOFBNotifyHDACodecDidPowerOn	12	since IOGRAPHICSTYPES_REV 68
kIOFBNotifyHDACodecWillPowerOff	13	since IOGRAPHICSTYPES_REV 68
kIOFBNotifyHDACodecDidPowerOff	14	since IOGRAPHICSTYPES_REV 68
kIOFBNotifyClamshellChange	20
kIOFBNotifyCaptureChange	30
kIOFBNotifyOnlineChange	40
kIOFBNotifyDisplayDimsChange	50
kIOFBNotifyProbed	60
kIOFBNotifyVRAMReady	70
kIOFBNotifyWillNotify	80
kIOFBNotifyDidNotify	81
kIOFBNotifyWSAAWillEnterDefer	90	<rdar://problem/32063590> IOGraphics needs to send WSAAWillExitDefer and WSAADidExitDefer instead of single message since IOGRAPHICSTYPES_REV 53
kIOFBNotifyWSAAWillExitDefer	91	since IOGRAPHICSTYPES_REV 53
kIOFBNotifyWSAADidEnterDefer	92	since IOGRAPHICSTYPES_REV 53
kIOFBNotifyWSAADidExitDefer	93	since IOGRAPHICSTYPES_REV 53
kIOFBNotifyWSAAEnterDefer	90
kIOFBNotifyWSAAExitDefer	91
kIOFBNotifyTerminated	100	since IOGRAPHICSTYPES_REV 49

enum(anonymous)

addFramebufferNotificationWithOptions event types

underlying type unsigned int

kIOFBNotifyEvent_None	0
kIOFBNotifyEvent_DisplayModeChange	1
kIOFBNotifyEvent_SleepWake	2	Only for events: kIOFBNotifyWillSleep & kIOFBNotifyDidWake
kIOFBNotifyEvent_PowerOnOff	4
kIOFBNotifyEvent_ChangeSpeed	8
kIOFBNotifyEvent_ClamshellChange	16
kIOFBNotifyEvent_CaptureChange	32
kIOFBNotifyEvent_OnlineChange	64
kIOFBNotifyEvent_DisplayDimsChange	128
kIOFBNotifyEvent_Probed	256
kIOFBNotifyEvent_VRAMReady	512
kIOFBNotifyEvent_Notify	1024	kIOFBNotifyWillNotify & kIOFBNotifyDidNotify
kIOFBNotifyEvent_WSAADefer	2048
kIOFBNotifyEvent_Terminated	4096
kIOFBNotifyEvent_HDACodecPowerOnOff	8192	since IOFRAMEBUFFER_REV 7
kIOFBNotifyEvent_Last	16384
kIOFBNotifyEvent_All	16383

enum(anonymous)

underlying type unsigned int

kIOFBNotifyGroupID_Legacy	1	0x0 - 0xFF - Private: Reserved for IOGraphics.
kIOFBNotifyGroupID_IODisplay	16
kIOFBNotifyGroupID_AppleGraphicsDevicePolicy	256	0x100 - 0x1FF - Reserved for Apple kernel extensions
kIOFBNotifyGroupID_AppleGraphicsMGPUPowerControl	272
kIOFBNotifyGroupID_AppleGraphicsMUXControl	288
kIOFBNotifyGroupID_AppleGraphicsControl	304
kIOFBNotifyGroupID_AppleGraphicsDisplayPolicy	320
kIOFBNotifyGroupID_AppleGraphicsPowerManagement	336
kIOFBNotifyGroupID_AppleHDAController	352
kIOFBNotifyGroupID_AppleIOAccelDisplayPipe	368
kIOFBNotifyGroupID_AppleMCCSControl	384
kIOFBNotifyGroupID_VendorIntel	512	0x200 - 0x2FF - Reserved for vendor kernel extensions
kIOFBNotifyGroupID_VendorNVIDIA	768	0x300 - 0x3FF - Reserved for vendor kernel extensions
kIOFBNotifyGroupID_VendorAMD	1024	0x400 - 0x4FF - Reserved for vendor kernel extensions
kIOFBNotifyGroupID_ThirdParty	32768	0x8000+ - Reserved for third party software
kIOFBNotifyGroupID_Count	15

enum(anonymous)

addFramebufferNotificationWithOptions group priority range

underlying type int

kIOFBNotifyPriority_Min	-32768
kIOFBNotifyPriority_Max	32767

structIOFramebufferNotificationNotify

size 16, align 8

IOIndex	event
void *	info

enum(anonymous)

underlying type unsigned int

kFBDisplayUsablePowerState	2147483648
kFBDisplayPowerStateMask	65535

macrokIOFBDependentIDKey

#define kIOFBDependentIDKey "IOFBDependentID"

macrokIOFBDependentIndexKey

#define kIOFBDependentIndexKey "IOFBDependentIndex"

macroHAS_AGDCGTRACETOKEN

GTrace V2 support for AGDC markers

#define HAS_AGDCGTRACETOKEN 1

functionagdcGTraceToken

extern void agdcGTraceToken(
	const IOFramebuffer* fb,
	const uint16_t line,
	const bool useController,
	const uint16_t fnID,
	const uint8_t fnType,
	const uint16_t tag1,
	const uint64_t arg1,
	const uint16_t tag2,
	const uint64_t arg2,
	const uint16_t tag3,
	const uint64_t arg3
)

▾

claude-fable-5, 2026-08-24 · not from Apple sources · verified against xnu SDK Kernel.framework IOKit/graphics/IOFramebuffer.h (IOGraphicsFamily; declaration only)

Records a GTrace V2 marker on behalf of AppleGraphicsDeviceControl (AGDC) into the trace log of the given framebuffer, or of its controller when useController is true. The token carries the caller's source line, a function ID and function type, and up to three tag/value argument pairs. Not in the open source IOGraphics drops; documented from the SDK header declaration.