SPI_BUSNUM_TO_MASTER(9)           Serial Peripheral Interface (S          SPI_BUSNUM_TO_MASTER(9)



NAME
       spi_busnum_to_master - look up master associated with bus_num

SYNOPSIS
       struct spi_master * spi_busnum_to_master(u16 bus_num);

ARGUMENTS
       bus_num
           the master's bus number

CONTEXT
       can sleep

DESCRIPTION
       This call may be used with devices that are registered after arch init time. It returns a
       refcounted pointer to the relevant spi_master (which the caller must release), or NULL if
       there is no such master registered.

RETURN
       the SPI master structure on success, else NULL.

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