class AliTRDgeometry;
class AliTRDarraySignal;
class AliTRDarrayADC;
+class AliTRDmcmSim;
class AliTRDdigitizer : public AliDigitizer {
AliTRD *fTRD; //! TRD detector class
AliTRDgeometry *fGeo; //! TRD geometry
+ AliTRDmcmSim *fMcmSim; //! MCM simulation for digital processing
+
Int_t fEvent; //! Event number
Int_t *fMasks; //! Masks for the merging
Bool_t fCompress; // Switch to keep only compressed data in memory