SPI_WRITE(9)                      Serial Peripheral Interface (S                     SPI_WRITE(9)



NAME
       spi_write - SPI synchronous write

SYNOPSIS
       int spi_write(struct spi_device * spi, const void * buf, size_t len);

ARGUMENTS
       spi
           device to which data will be written

       buf
           data buffer

       len
           data buffer size

CONTEXT
       can sleep

DESCRIPTION
       This function writes the buffer buf. Callable only from contexts that can sleep.

RETURN
       zero on success, else a negative error code.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                              SPI_WRITE(9)