SymDevMaskAccessGet failed with code 195

I am writing a program using symapi.h of version "V7.1-1009" to get the VMAX disk array details like the number of logical devices, raid groups, pots information etc..

I am trying to get the HBA WWN information using the api SymDevMaskAccessGet.

                              SymDevMaskAccessGet(m_Handle,

                                                                        0,

                                                            (LPSTR)(LPCSTR)m_szSymId,

                                                            NULL,

                                                            SYMAPI_MASK_IDENT_NA,

                                                            NULL,

                                                            SYMAPI_C_ALL,

                                                            SYMAPI_C_ALL,

                                                            0,

                                                            NULL,

                                                            SYMAPI_MASK_ACC_FLGS_NONE,

                                                            SYMAPI_MASK_SRC_FROM_SYMMETRIX,

                                                            NULL,

                                                            &acc_db,

                                                            NULL);

But it is retuning an error code 195 as below:

195 [SYMAPI_C_FEATURE_NOT_AVAILABLE] (The requested feature is not supported for this microcode or SYMAPI version)

Please reply me if I am doing wrong or any other alternative to this call.