1SPI_WRITE(9)            Serial Peripheral Interface (S            SPI_WRITE(9)
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NAME

6       spi_write - SPI synchronous write
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SYNOPSIS

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

12       spi
13           device to which data will be written
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15       buf
16           data buffer
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18       len
19           data buffer size
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CONTEXT

22       can sleep
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DESCRIPTION

25       This writes the buffer and returns zero or a negative error code.
26       Callable only from contexts that can sleep.
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29Kernel Hackers Manual 3.10         June 2019                      SPI_WRITE(9)
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