SPI_SYNC_TRANSFER(9) Serial Peripheral Interface (S SPI_SYNC_TRANSFER(9)NAMEspi_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.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 SPI_SYNC_TRANSFER(9)