ataPBHeader Struct Reference

Data Fields
struct ataPBHeader *	ataPBLink
UInt16	ataPBQType
UInt8	ataPBVers
UInt8	ataPBReserved
Ptr	ataPBReserved2
ATACallbackUPP	ataPBCallbackPtr
OSErr	ataPBResult
UInt8	ataPBFunctionCode
UInt8	ataPBIOSpeed
UInt16	ataPBFlags
SInt16	ataPBReserved3
UInt32	ataPBDeviceID
UInt32	ataPBTimeOut
Ptr	ataPBClientPtr1
Ptr	ataPBClientPtr2
UInt16	ataPBState
UInt16	ataPBSemaphores
SInt32	ataPBReserved4

Field Documentation

ataPBCallbackPtr

ATACallbackUPP ataPBHeader::ataPBCallbackPtr

Reserved

ataPBClientPtr1

Ptr ataPBHeader::ataPBClientPtr1

-->: Transaction timeout value in msec

ataPBClientPtr2

Ptr ataPBHeader::ataPBClientPtr2

Client's storage Ptr 1

ataPBDeviceID

UInt32 ataPBHeader::ataPBDeviceID

Reserved

ataPBFlags

UInt16 ataPBHeader::ataPBFlags

-->: I/O Timing Class

ataPBFunctionCode

UInt8 ataPBHeader::ataPBFunctionCode

<–: Returned result

ataPBIOSpeed

UInt8 ataPBHeader::ataPBIOSpeed

-->: Manager Function Code

ataPBLink

struct ataPBHeader* ataPBHeader::ataPBLink

Start of cloned common header ataPBHdr

ataPBQType

UInt16 ataPBHeader::ataPBQType

a pointer to the next entry in the queue

ataPBReserved

UInt8 ataPBHeader::ataPBReserved

-->: parameter block version number

ataPBReserved2

Ptr ataPBHeader::ataPBReserved2

Reserved

ataPBReserved3

SInt16 ataPBHeader::ataPBReserved3

-->: Various control options

ataPBReserved4

SInt32 ataPBHeader::ataPBReserved4

Used internally by the manager

ataPBResult

OSErr ataPBHeader::ataPBResult

-->: Completion Routine Pointer

ataPBSemaphores

UInt16 ataPBHeader::ataPBSemaphores

Reserved for Manager; Initialize to 0

ataPBState

UInt16 ataPBHeader::ataPBState

Client's storage Ptr 2

ataPBTimeOut

UInt32 ataPBHeader::ataPBTimeOut

-->: Device identifier (see ataDeviceID)

ataPBVers

UInt8 ataPBHeader::ataPBVers

type byte for safety check

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The documentation for this struct was generated from the following file:

• ATA.h