get_write_position 29 sound/soc/intel/baytrail/sst-baytrail-ipc.h uint32_t (*get_write_position)(struct sst_byt_stream *stream, get_write_position 417 sound/soc/intel/haswell/sst-haswell-ipc.h u32 (*get_write_position)(struct sst_hsw_stream *stream, void *data),