macOS kernel return 0xE0008004 (kIOFireWireConfigROMInvalid): meaning

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The FireWire Configuration ROM could not be accepted as valid for the requested operation.

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kIOFireWireLastDCLToken	kIOFireWireAlreadyRegistered

kIOFireWireConfigROMInvalid

The device description cannot be trusted yet

kIOFireWireConfigROMInvalid identifies a Configuration ROM validation failure in Apple's FireWire family. The code is more specific than a missing directory entry: it means the ROM data needed for discovery or binding could not be used as a valid description of the node for that operation.

Configuration ROM is tied to a bus node and can be observed across resets and topology changes. Diagnostic work should preserve the exact ROM bytes, length, generation, and node identity. A later reset can change what is readable, but it does not prove that an earlier invalid image was harmless or that it described the same state.

Validate the acquisition path

Save the raw ROM image, reported length, node GUID, controller, and bus generation before attempting recovery.
Check whether the failure followed a reset, device power transition, cable change, or partial enumeration.
Distinguish ROM validation from a lookup failure; the latter is represented by kIOConfigNoEntry.
Do not bind a driver or parser to partially trusted ROM data merely because a familiar vendor or model string appears elsewhere.

References

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