---
title: IOAVCOpcodes
framework: kernel
role: symbol
role_heading: Type Alias
path: kernel/ioavcopcodes
---

# IOAVCOpcodes

## Declaration

```occ
typedef enum IOAVCOpcodes IOAVCOpcodes;
```

## Topics

### Constants

- [kAVCConnectOpcode](kernel/ioavcopcodes/kavcconnectopcode.md)
- [kAVCConnectionsOpcode](kernel/ioavcopcodes/kavcconnectionsopcode.md)
- [kAVCDisconnectOpcode](kernel/ioavcopcodes/kavcdisconnectopcode.md)
- [kAVCInputPlugSignalFormatOpcode](kernel/ioavcopcodes/kavcinputplugsignalformatopcode.md)
- [kAVCInputSignalModeOpcode](kernel/ioavcopcodes/kavcinputsignalmodeopcode.md)
- [kAVCOutputPlugSignalFormatOpcode](kernel/ioavcopcodes/kavcoutputplugsignalformatopcode.md)
- [kAVCOutputSignalModeOpcode](kernel/ioavcopcodes/kavcoutputsignalmodeopcode.md)
- [kAVCPlugInfoOpcode](kernel/ioavcopcodes/kavcpluginfoopcode.md)
- [kAVCPowerOpcode](kernel/ioavcopcodes/kavcpoweropcode.md)
- [kAVCSignalModeDVCPro525_60](kernel/ioavcopcodes/kavcsignalmodedvcpro525_60.md)
- [kAVCSignalModeDVCPro625_50](kernel/ioavcopcodes/kavcsignalmodedvcpro625_50.md)
- [kAVCSignalModeDummyOperand](kernel/ioavcopcodes/kavcsignalmodedummyoperand.md)
- [kAVCSignalModeHD1125_60](kernel/ioavcopcodes/kavcsignalmodehd1125_60.md)
- [kAVCSignalModeHD1250_50](kernel/ioavcopcodes/kavcsignalmodehd1250_50.md)
- [kAVCSignalModeMask_50](kernel/ioavcopcodes/kavcsignalmodemask_50.md)
- [kAVCSignalModeMask_DVCPro25](kernel/ioavcopcodes/kavcsignalmodemask_dvcpro25.md)
- [kAVCSignalModeMask_SDL](kernel/ioavcopcodes/kavcsignalmodemask_sdl.md)
- [kAVCSignalModeMask_STYPE](kernel/ioavcopcodes/kavcsignalmodemask_stype.md)
- [kAVCSignalModeSD525_60](kernel/ioavcopcodes/kavcsignalmodesd525_60.md)
- [kAVCSignalModeSD625_50](kernel/ioavcopcodes/kavcsignalmodesd625_50.md)
- [kAVCSignalModeSDL525_60](kernel/ioavcopcodes/kavcsignalmodesdl525_60.md)
- [kAVCSignalModeSDL625_50](kernel/ioavcopcodes/kavcsignalmodesdl625_50.md)
- [kAVCSignalSourceOpcode](kernel/ioavcopcodes/kavcsignalsourceopcode.md)
- [kAVCSubunitInfoOpcode](kernel/ioavcopcodes/kavcsubunitinfoopcode.md)
- [kAVCUnitInfoOpcode](kernel/ioavcopcodes/kavcunitinfoopcode.md)
- [kAVCVendorDependentOpcode](kernel/ioavcopcodes/kavcvendordependentopcode.md)

## See Also

### Types

- [IOFWDuplicateGUIDRec](kernel/iofwduplicateguidrec.md)
- [IOFWARxReqIntCompleteHandler](kernel/iofwarxreqintcompletehandler.md)
- [IOFWAVCAsyncCommandState](kernel/iofwavcasynccommandstate.md)
- [IOFWAVCPlugTypes](kernel/iofwavcplugtypes.md)
- [IOFWAVCProtocolUserClientAsyncCommandCodes](kernel/iofwavcprotocoluserclientasynccommandcodes.md)
- [IOFWAVCProtocolUserClientCommandCodes](kernel/iofwavcprotocoluserclientcommandcodes.md)
- [IOFWAVCSubunitPlugMessages](kernel/iofwavcsubunitplugmessages.md)
- [IOFWAVCUserClientAsyncCommandCodes](kernel/iofwavcuserclientasynccommandcodes.md)
- [IOFWAVCUserClientCommandCodes](kernel/iofwavcuserclientcommandcodes.md)
- [IOFWCmdQ](kernel/iofwcmdq.md)
- [IOFWDCLNotificationType](kernel/iofwdclnotificationtype.md)
- [IOFWIsochPortOptions](kernel/iofwisochportoptions.md)
- [IOFWIsochResourceFlags](kernel/iofwisochresourceflags.md)
- [IOFWNodeScan](kernel/iofwnodescan.md)
- [IOFWPhysicalAccessMode](kernel/iofwphysicalaccessmode.md)
- [IOFWReadFlags](kernel/iofwreadflags.md)
- [IOFWRequestRefCon](kernel/iofwrequestrefcon.md)
- [IOFWSBP2UserClientCommandCodes](kernel/iofwsbp2userclientcommandcodes.md)
- [IOFWSecurityMode](kernel/iofwsecuritymode.md)
- [IOFWSpeed](kernel/iofwspeed.md)
- [IOFWWriteFlags](kernel/iofwwriteflags.md)
- [IOFireWireAVCAsynchronousCommandCallback](kernel/iofirewireavcasynchronouscommandcallback.md)
- [IOFireWireAVCSubunitPlugHandlerCallback](kernel/iofirewireavcsubunitplughandlercallback.md)
- [IOFireWireAVCTargetCommandHandlerCallback](kernel/iofirewireavctargetcommandhandlercallback.md)
- [IOFireWirePCRCallback](kernel/iofirewirepcrcallback.md)
- [IOFireWireSessionRef](kernel/iofirewiresessionref.md)
- [IOAVCCommandResponse](kernel/ioavccommandresponse.md)
- [IOAVCFrameFields](kernel/ioavcframefields.md)
- [IOAVCUnitTypes](kernel/ioavcunittypes.md)
- [FWAddress](kernel/fwaddress.md)
- [FWAddressPtr](kernel/fwaddressptr.md)
- [FWAsyncPHYCallback](kernel/fwasyncphycallback.md)
- [FWAsyncStreamCallback](kernel/fwasyncstreamcallback.md)
- [FWAsyncStreamReceiveCallback](kernel/fwasyncstreamreceivecallback.md)
- [FWBusCallback](kernel/fwbuscallback.md)
- [FWClientCommandID](kernel/fwclientcommandid.md)
- [FWDeviceCallback](kernel/fwdevicecallback.md)
- [FWIsochChannelForceStopNotificationProc](kernel/fwisochchannelforcestopnotificationproc.md)
- [FWIsochChannelForceStopNotificationProcPtr](kernel/fwisochchannelforcestopnotificationprocptr.md)
- [FWMultiIsochReceiveListenerCallback](kernel/fwmultiisochreceivelistenercallback.md)
- [FWPHYPacketCallback](kernel/fwphypacketcallback.md)
- [FWReadCallback](kernel/fwreadcallback.md)
- [FWSegment](kernel/fwsegment.md)
- [FWWriteCallback](kernel/fwwritecallback.md)