## MMPM/2 Device Driver Reference

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### DDCMD_REG_STREAM Return Value - rc

rc (ULONG) Error code indicating success or the type of failure:

NO_ERROR Success.

ERROR_INVALID_FUNCTION Illegal function requested.

ERROR_INVALID_STREAM Invalid stream handle.

ERROR_HNDLR_REGISTERED Stream had already been registered with the Sync/ Stream Manager.

ERROR_INVALID_SPCBKEY Invalid SPCBKEY.

ERROR_INITIALIZATION An error occurred during device initialization.

ERROR_STREAM_CREATION An error occurred during the creation of this stream instance.

FAILURE Device-driver-specific error return code.