STRUCT SPI_DRIVER(9)              Serial Peripheral Interface (S             STRUCT SPI_DRIVER(9)



NAME
       struct_spi_driver - Host side “protocol” driver

SYNOPSIS
       struct spi_driver {
         const struct spi_device_id * id_table;
         int (* probe) (struct spi_device *spi);
         int (* remove) (struct spi_device *spi);
         void (* shutdown) (struct spi_device *spi);
         struct device_driver driver;
       };

MEMBERS
       id_table
           List of SPI devices supported by this driver

       probe
           Binds this driver to the spi device. Drivers can verify that the device is actually
           present, and may need to configure characteristics (such as bits_per_word) which
           weren't needed for the initial configuration done during system setup.

       remove
           Unbinds this driver from the spi device

       shutdown
           Standard shutdown callback used during system state transitions such as powerdown/halt
           and kexec

       driver
           SPI device drivers should initialize the name and owner field of this structure.

DESCRIPTION
       This represents the kind of device driver that uses SPI messages to interact with the
       hardware at the other end of a SPI link. It's called a “protocol” driver because it works
       through messages rather than talking directly to SPI hardware (which is what the
       underlying SPI controller driver does to pass those messages). These protocols are defined
       in the specification for the device(s) supported by the driver.

       As a rule, those device protocols represent the lowest level interface supported by a
       driver, and it will support upper level interfaces too. Examples of such upper levels
       include frameworks like MTD, networking, MMC, RTC, filesystem character device nodes, and
       hardware monitoring.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                      STRUCT SPI_DRIVER(9)