1SPI_W8R16(9) Serial Peripheral Interface (S SPI_W8R16(9)
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6 spi_w8r16 - SPI synchronous 8 bit write followed by 16 bit read
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9 ssize_t spi_w8r16(struct spi_device * spi, u8 cmd);
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12 spi
13 device with which data will be exchanged
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15 cmd
16 command to be written before data is read back
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19 can sleep
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22 This returns the (unsigned) sixteen bit number returned by the device,
23 or else a negative error code. Callable only from contexts that can
24 sleep.
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26 The number is returned in wire-order, which is at least sometimes
27 big-endian.
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30Kernel Hackers Manual 2.6. June 2019 SPI_W8R16(9)