spiLookup method

int spiLookup(
  1. String spiName
)

SPI lookup - mraa_spi_lookup

Get the SPI bus index by bus name, the board must be initialised. Returns the MRAA index for SPI bus or Mraa.generalError on error.

Implementation

int spiLookup(String spiName) =>
    _impl.mraa_spi_lookup(spiName.toNativeUtf8().cast<Char>());