## MMPM/2 Device Driver Reference

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### AUDIO_UPDATE (47h) - Pointer to structure

Pointer to structure The data packet parameter is a pointer to the following data structure.

    typedef struct _audio_update {
      CHAR           iobuf_type;
      CHAR FAR      *buffer_address;
      ULONG          buffer_length;
      USHORT         rc;
      void FAR      *reserved;
    } audio_update;

    typedef   struct   audio _ update   FAR   * UPDATE ;