SPI_BUS_UNLOCK(9) Serial Peripheral Interface (S SPI_BUS_UNLOCK(9)
NAME
spi_bus_unlock - release the lock for exclusive SPI bus usage
SYNOPSIS
int spi_bus_unlock(struct spi_master * master);
ARGUMENTS
master
SPI bus master that was locked for exclusive bus access
CONTEXT
can sleep
DESCRIPTION
This call may only be used from a context that may sleep. The sleep is non-interruptible, and has no timeout.
This call releases an SPI bus lock previously obtained by an spi_bus_lock call.
It returns zero on success, else a negative error code.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SPI_BUS_UNLOCK(9)
