EFX_POPULATE_BYTE_1
EFX_POPULATE_BYTE_1(*MCDI_IN2(_emr, efx_byte_t, _ofst), \
EFX_POPULATE_BYTE_1(_byte, EFX_DUMMY_FIELD, 0)
EFX_POPULATE_BYTE_1(_byte, \
EFX_POPULATE_BYTE_1(byte, EFX_BYTE_0, data[*offsetp]);
EFX_POPULATE_BYTE_1(dcfg->version, EFX_BYTE_0,