- int spi_sync_transfer(struct spi_device * spi, struct spi_transfer * xfers, unsigned int num_xfers);
- device with which data will be exchanged
- An array of spi_transfers
- Number of items in the xfer array
Does a synchronous SPI data transfer of the given spi_transfer array.
For more specific semantics see spi_sync.
It returns zero on success, else a negative error code.