Global amp_state::ampport_deprecated: Amplifier port (internal use).
Global hamlib_port_t_deprecated: This structure will be removed in 5.0 and should not be used in new code.
Global port_t_deprecated: Obsolete port type
Global rig_caps::transceive: Use async_data_supported instead
Global rig_get_trn (RIG *rig, int *trn): This functionality has never worked correctly and it is now disabled in favor of new async data handling capabilities. The command will always return -RIG_EDEPRECATED until the command will be removed eventually.
Global rig_set_trn (RIG *rig, int trn): This functionality has never worked correctly and it is now disabled in favor of new async data handling capabilities. The command will always return -RIG_EDEPRECATED until the command will be removed eventually.
Global rig_state::cache: Only here for backward compatibility
Global rig_state::dcdport_deprecated: DCD port (internal use).
Global rig_state::deprecated_itu_region: ITU region to select among freq_range_t
Global rig_state::pttport_deprecated: PTT port (internal use).
Global rig_state::rigport_deprecated: Rig port (internal use).
Global rig_state::transceive: Use async_data_supported instead
Struct rig_state_deprecated: Due to DLL problems this remains in-place in the rig_caps structure but is no longer referred to.

A new rig_state has been added at the end of the structure instead of the middle.

This struct contains no data and is just a place holder for DLL alignment.

It is NOT fine to touch this struct AT ALL!!!

Do not use in new code.
Global RIG_TRN_OFF: Turn it off
Global RIG_TRN_POLL: RIG_TRN_POLL means we have to poll the rig
Global RIG_TRN_RIG: RIG_TRN_RIG means the rig acts asynchronously