Here, fixed it for you: setup_spi( &adc, mode = SPI_01, rate = 15, cs_control = CS_MUXED, cs = 0x01 )

Here, fixed it for you: setup_spi( &adc, mode = SPI_01, rate = 15, cs_control = CS_MUXED, cs = 0x01 ); setup_spoo( &adc, mode = SPI_01, rate = 15, cs_control = CS_MUXED, cs = 0x01 ); setup_s( &adc, mode = SPI_01, rate = 15, cs_control = CS_MUXED, cs = 0x01 ); validate_and_register_spi_spoo_s( &adc, mode = SPI_01, rate = 15, cs_control = CS_MUXED, cs = 0x01 );