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.
- macOS 10.1+
The isoch port interface to use.
Channel number (-63)
Return kIOReturnSuccess on success, other return any other IOReturn error code.
This method is called by the channel object to which a port has been added. Subclasses of IOFireWireIsochPortInterface override this method to support specific hardware. Do not call this method directly.