superhyway.c File Reference

#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/superhyway.h>
#include <linux/string.h>
#include <linux/slab.h>

Go to the source code of this file.

Functions
int	superhyway_add_device (unsigned long base, struct superhyway_device *sdev, struct superhyway_bus *bus)
int	superhyway_add_devices (struct superhyway_bus *bus, struct superhyway_device **devices, int nr_devices)
	postcore_initcall (superhyway_init)
int	superhyway_register_driver (struct superhyway_driver *drv)
void	superhyway_unregister_driver (struct superhyway_driver *drv)
	core_initcall (superhyway_bus_init)
	module_exit (superhyway_bus_exit)
	EXPORT_SYMBOL (superhyway_bus_type)
	EXPORT_SYMBOL (superhyway_add_device)
	EXPORT_SYMBOL (superhyway_add_devices)
	EXPORT_SYMBOL (superhyway_register_driver)
	EXPORT_SYMBOL (superhyway_unregister_driver)
	MODULE_LICENSE ("GPL")

Variables
struct bus_type	superhyway_bus_type

Function Documentation

core_initcall

(

superhyway_bus_init

)

EXPORT_SYMBOL

(

superhyway_bus_type

)

EXPORT_SYMBOL

(

superhyway_add_device

)

EXPORT_SYMBOL

(

superhyway_add_devices

)

EXPORT_SYMBOL

(

superhyway_register_driver

)

EXPORT_SYMBOL

(

superhyway_unregister_driver

)

module_exit

(

superhyway_bus_exit

)

MODULE_LICENSE

(

"GPL"

)

postcore_initcall

(

superhyway_init

)

int superhyway_add_device	(	unsigned long	base,
		struct superhyway_device *	sdev,
		struct superhyway_bus *	bus
	)

superhyway_add_device - Add a SuperHyway module : Physical address where module is mapped. : SuperHyway device to add, or NULL to allocate a new one. : Bus where SuperHyway module resides.

This is responsible for adding a new SuperHyway module. This sets up a new struct superhyway_device for the module being added if == NULL.

Devices are initially added in the order that they are scanned (from the top-down of the memory map), and are assigned an ID based on the order that they are added. Any manual addition of a module will thus get the ID after the devices already discovered regardless of where it resides in memory.

Further work can and should be done in superhyway_scan_bus(), to be sure that any new modules are properly discovered and subsequently registered.

Definition at line 53 of file superhyway.c.

int superhyway_add_devices	(	struct superhyway_bus *	bus,
		struct superhyway_device **	devices,
		int	nr_devices
	)

Definition at line 93 of file superhyway.c.

int superhyway_register_driver

(

struct superhyway_driver *

drv

)

superhyway_register_driver - Register a new SuperHyway driver : SuperHyway driver to register.

This registers the passed in . Any devices matching the id table will automatically be populated and handed off to the driver's specified probe routine.

Definition at line 174 of file superhyway.c.

void superhyway_unregister_driver

(

struct superhyway_driver *

drv

)

superhyway_unregister_driver - Unregister a SuperHyway driver : SuperHyway driver to unregister.

This cleans up after superhyway_register_driver(), and should be invoked in the exit path of any module drivers.

Definition at line 189 of file superhyway.c.

Variable Documentation

struct bus_type superhyway_bus_type

Initial value:

= {
    .name       = "superhyway",
    .match      = superhyway_bus_match,



    .probe      = superhyway_device_probe,
    .remove     = superhyway_device_remove,
}

Definition at line 208 of file superhyway.c.