Instance Property

ModifyTransferPacketDCLSize

Modify the transfer size of a transfer packet DCL (send or receive)

Declaration

IOReturn (*ModifyTransferPacketDCLSize)(IOFireWireLibLocalIsochPortRef self, DCLTransferPacket *inDCL, IOByteCount size);

Parameters

self

The local isoch port interface to use.

inDCL

A pointer to the DCL to modify.

size

The new size of data to be transferred.

Return Value

Returns kIOReturnSuccess on success. Will return an error if 'size' is too large for this program.

Discussion

Allows you to modify transfer packet DCLs after they have been compiled and while the DCL program is still running. The transfer size can be set to any size less than or equal to the size set when the DCL program was compiled (including 0).

Availability: IOFireWireLocalIsochPortInterface_v2 and newer.

See Also

Miscellaneous

AllocatePort

The method is called when the port should configure its associated hardware to prepare to send or receive isochronous data on the channel number and at the speed specified.

GetRefCon

Get reference value associated with this port.

GetSupported

The method is called to determine which FireWire isochronous channels and speed this port supports.

ModifyJumpDCL

Change the jump target label of a jump DCL.

ModifyTransferPacketDCL

Modify the transfer size of a transfer packet DCL (send or receive)

ModifyTransferPacketDCLBuffer

NOT IMPLEMENTED. Modify the transfer size of a transfer packet DCL (send or receive)

PrintDCLProgram

Display the contents of a DCL program.

ReleasePort

The method is called to release the hardware after the channel has been stopped.

SetFinalizeCallback

Set the finalize callback for a local isoch port

SetRefCon

Set reference value associated with this port.

Start

The method is called when the port is to begin talking or listening.

Stop

The method is called when the port is to stop talking or listening.

Beta Software

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