DRIVER_FIND(9) Device drivers infrastructure DRIVER_FIND(9)NAME
driver_find - locate driver on a bus by its name.
SYNOPSIS
struct device_driver * driver_find(const char * name, struct bus_type * bus);
ARGUMENTS
name
name of the driver.
bus
bus to scan for the driver.
DESCRIPTION
Call kset_find_obj to iterate over list of drivers on a bus to find driver by name. Return driver if found.
This routine provides no locking to prevent the driver it returns from being unregistered or unloaded while the caller is using it. The
caller is responsible for preventing this.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 DRIVER_FIND(9)
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STRUCT DEVICE_DRIVER(9) Device drivers infrastructure STRUCT DEVICE_DRIVER(9)NAME
struct_device_driver - The basic device driver structure
SYNOPSIS
struct device_driver {
const char * name;
struct bus_type * bus;
struct module * owner;
const char * mod_name;
bool suppress_bind_attrs;
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;
};
MEMBERS
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.
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.
DESCRIPTION
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.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 STRUCT DEVICE_DRIVER(9)