``` if(enable) { port_config.i2s.channel_mode = AFE_PORT_I2S_SD0; port_config.i2s.mono_stereo = MSM_AFE_CH_STEREO; port_config.i2s.data_format= 0; port_config.i2s.bit_width = 16; port_config.i2s.reserved = 0; port_config.i2s.i2s_cfg_minor_version = AFE_API_VERSION_I2S_CONFIG; port_config.i2s.sample_rate = 48000; port_config.i2s.ws_src = 1; rc = afe_port_start(AFE_PORT_ID_QUINARY_MI2S_RX, &port_config, 48000); ``` this is what downstream does