spi_sync_transfer9
Synchronous spi data transfer
Usage
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
Overview
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.