// bdatypes.h

typedef struct _BDA_DVBT2_L1_SIGNALLING_DATA {
  BYTE L1Pre_TYPE;
  BYTE L1Pre_BWT_S1_S2;
  BYTE L1Pre_REPETITION_GUARD_PAPR;
  BYTE L1Pre_MOD_COD_FEC;
  BYTE L1Pre_POSTSIZE_INFO_PILOT[5];
  BYTE L1Pre_TX_ID_AVAIL;
  BYTE L1Pre_CELL_ID[2];
  BYTE L1Pre_NETWORK_ID[2];
  BYTE L1Pre_T2SYSTEM_ID[2];
  BYTE L1Pre_NUM_T2_FRAMES;
  BYTE L1Pre_NUM_DATA_REGENFLAG_L1POSTEXT[2];
  BYTE L1Pre_NUMRF_CURRENTRF_RESERVED[2];
  BYTE L1Pre_CRC32[4];
  BYTE L1PostData[MIN_DIMENSION];
} BDA_DVBT2_L1_SIGNALLING_DATA, *PBDA_DVBT2_L1_SIGNALLING_DATA;
View the official Windows Driver Kit DDI reference