Name
spi_busnum_to_master —
look up master associated with bus_num
Arguments
bus_num
the master's bus number
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.