1SPI_BUS_UNLOCK(9) Serial Peripheral Interface (S SPI_BUS_UNLOCK(9)
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6 spi_bus_unlock - release the lock for exclusive SPI bus usage
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9 int spi_bus_unlock(struct spi_master * master);
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12 master
13 SPI bus master that was locked for exclusive bus access
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16 can sleep
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19 This call may only be used from a context that may sleep. The sleep is
20 non-interruptible, and has no timeout.
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22 This call releases an SPI bus lock previously obtained by an
23 spi_bus_lock call.
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25 It returns zero on success, else a negative error code.
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28Kernel Hackers Manual 3.10 June 2019 SPI_BUS_UNLOCK(9)