uac23_clock_source_desc
union uac23_clock_source_desc, validate_clock_source,
union uac23_clock_source_desc *cs_desc;
union uac23_clock_source_desc *cs_desc;
union uac23_clock_source_desc *source;
union uac23_clock_source_desc *cs_desc;
union uac23_clock_source_desc *cs = p;