Here are the data structures with brief descriptions:

Ccal_table	Calibration table struct
Cchan_list	Memory channel list definition
Cchannel	Channel structure
Cchannel_cap	Channel capability definition
Cconfparams	Configuration parameter structure
Cext_list	Extension attribute definition
Cfilter_list	Filter definition
Cfreq_range_list	Frequency range
Cgran	Level/parm granularity definition
Chamlib_port	Port definition
Crig	The Rig structure
CRig
Crig_callbacks	Callback functions and args for rig event
Crig_caps	Rig data structure
Crig_list
Crig_state	Rig state containing live data and customized fields
CRigException
Crot	This is the master data structure, acting as a handle for the controlled rotator
Crot_caps	Rotator data structure
Crot_list
Crot_state	Live data and customized fields
CRotator
Ctuning_step_list	Tuning step definition
Cvalue_t	Universal approach for passing values