Here is a list of all documented variables with links to the struct/union documentation for each field:

- cellular_info : cmtspeech_event_s
- cmt_sent_req : cmtspeech_event_s
- codec_info : cmtspeech_event_s
- count : cmtspeech_buffer_s
- data : cmtspeech_buffer_s
- frame_flags : cmtspeech_buffer_s
- index : cmtspeech_buffer_s
- layout_changed : cmtspeech_event_s
- msg : cmtspeech_event_s
- msg_type : cmtspeech_event_s
- payload : cmtspeech_buffer_s
- pcount : cmtspeech_buffer_s
- prev_state : cmtspeech_event_s
- reserved : cmtspeech_event_s
- size : cmtspeech_buffer_s
- spc_flags : cmtspeech_buffer_s
- state : cmtspeech_event_s
- tstamp : cmtspeech_event_s
- type : cmtspeech_buffer_s
- version : cmtspeech_event_s