Linux Kernel设备驱动模型之 struct device

设备驱动描述：
/**
 * struct device_driver - The basic device driver structure
 * @name: Name of the device driver.
 * @bus: The bus which the device of this driver belongs to.
 * @owner: The module owner.
 * @mod_name: Used for built-in modules.
 * @suppress_bind_attrs: Disables bind/unbind via sysfs.
 * @probe_type: Type of the probe (synchronous or asynchronous) to use.
 * @of_match_table: The open firmware table.
 * @acpi_match_table: The ACPI match table.
 * @probe: Called to query the existence of a specific device,
 *  whether this driver can work with it, and bind the driver
 *  to a specific device.
 * @remove: Called when the device is removed from the system to
 *  unbind a device from this driver.
 * @shutdown: Called at shut-down time to quiesce the device.
 * @suspend: Called to put the device to sleep mode. Usually to a
 *  low power state.
 * @resume: Called to bring a device from sleep mode.
 * @groups: Default attributes that get created by the driver core
 *  automatically.
 * @pm:  Power management operations of the device which matched
 *  this driver.
 * @p:  Driver core's private data, no one other than the driver
 *  core can touch this.
 *
 * The device driver-model tracks all of the drivers known to the system.
 * The main reason for this tracking is to enable the driver core to match
 * up drivers with new devices. Once drivers are known objects within the
 * system, however, a number of other things become possible. Device drivers
 * can export information and configuration variables that are independent
 * of any specific device.
 */
struct device_driver {
 const char  *name;
 struct bus_type  *bus;

struct module  *owner;
 const char  *mod_name; /* used for built-in modules */
 bool suppress_bind_attrs; /* disables bind/unbind via sysfs */
 enum probe_type probe_type;
 const struct of_device_id *of_match_table;
 const struct acpi_device_id *acpi_match_table;
 int (*probe) (struct device *dev);
 int (*remove) (struct device *dev);
 void (*shutdown) (struct device *dev);
 int (*suspend) (struct device *dev, pm_message_t state);
 int (*resume) (struct device *dev);
 const struct attribute_group **groups;
 const struct dev_pm_ops *pm;
 struct driver_private *p;
};