Modify the transfer size of a transfer packet DCL (send or receive)
- macOS 10.1+
The isoch channel interface to use.
The listener to add.
Returns an IOReturn error code.
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_v3 and newer.