As my code is completely based on C++, I can't use usrp.tune(self.u, 0, self.subdev,106.2e6), instead can I use the following method from usrp_standard:
bool usrp_standard_rx::tune(int chan, db_base_sptr db, double target_freq, usrp_tune_result *result)
// Set DDC center frequency
urx->set_rx_freq (0, center_freq);
//What should be my center_freq here?
//Set Tuning Frequency
urx->tune(0, db, 106.2e6, result)
// How should I pass the value of db and result?
// Set Number of channels
urx->set_nchannels(1);
// Set ADC PGA gain
urx->set_pga(0,gain);
// Set FPGA Mux
urx->set_mux(0x32103210); // Board A only
// Set DDC decimation rate
urx->set_decim_rate(decim);
// Set DDC phase
urx->set_ddc_phase(0,0);