STRUCT SPI_DRIVER(9) Serial Peripheral Interface (S STRUCT SPI_DRIVER(9)NAMEstruct_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);
int (* suspend) (struct spi_device *spi, pm_message_t mesg);
int (* resume) (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
suspend
Standard suspend callback used during system state transitions
resume
Standard resume callback used during system state transitions
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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 STRUCT SPI_DRIVER(9)
