Here are the data structures with brief descriptions:

C__attribute__	The common RDM header
CBootloader_LED	Specifies an LED to flash during bootloader mode
CBootloader_LEDs	The array of LEDs to flash when we're in bootloader mode
CCoarseTimer_Settings	Settings for the CoarseTimer module
CFlagsData
CFlagsState
CIOVec	An IOVector, with a pointer to memory and a length attribute
CMessage	A de-serialized message
CModelEntry	The function table entry for a particular responder model
CParameterDescription	A parameter description
CPersonalityDefinition	The definition of a DMX512 personality
CPIDDescriptor	A descriptor for a PID
CProductDetailIds	The Product Detail IDs for the responder
CRDMHandlerSettings	The settings to use for the RDM Handler
CRDMResponder	A core implementation of a responder
CRDMResponderSettings	The settings to use for the RDM Responder
CResponderDefinition	The definition of a responder
CSensorData	Data for an RDM Sensor
CSensorDefinition	An RDM sensor definition
CSlotDefinition	The definition of a DMX slot
CSPIRGBConfiguration	SPI RGB Module configuration
CTransceiverEvent	Information about a transceiver event
CTransceiverHardwareSettings	The hardware settings to use for the Transceiver
CTransceiverTiming	The timing measurements for an operation