spi_sync_transfer(9) centos man page | unix.com

SPI_SYNC_TRANSFER(9)					  Serial Peripheral Interface (S				      SPI_SYNC_TRANSFER(9)

NAME
       spi_sync_transfer - synchronous SPI data transfer

SYNOPSIS
       int spi_sync_transfer(struct spi_device * spi, struct spi_transfer * xfers, unsigned int num_xfers);

ARGUMENTS
       spi
	   device with which data will be exchanged

       xfers
	   An array of spi_transfers

       num_xfers
	   Number of items in the xfer array

CONTEXT
       can sleep

DESCRIPTION
       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.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      SPI_SYNC_TRANSFER(9)