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Subject[PATCH 1/2] KernelDoc:Add the device driver-model structures to kerneldoc
Date
From: Wanlong Gao <wanlong.gao@gmail.com>

Add the comment the structure bus_type, device_driver, device,
class for generating the driver-model kerneldoc.

Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com>
---
Documentation/DocBook/device-drivers.tmpl | 6 +-
include/linux/device.h | 104 ++++++++++++++++++++++++++++-
2 files changed, 104 insertions(+), 6 deletions(-)
diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index 36f63d4..5e482e0 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -96,10 +96,10 @@ X!Iinclude/linux/kobject.h

<chapter id="devdrivers">
<title>Device drivers infrastructure</title>
+ <sect1><title>The Basic Device Driver-Model Structure </title>
+!Iinclude/linux/device.h
+ </sect1>
<sect1><title>Device Drivers Base</title>
-<!--
-X!Iinclude/linux/device.h
--->
!Edrivers/base/driver.c
!Edrivers/base/core.c
!Edrivers/base/class.c
diff --git a/include/linux/device.h b/include/linux/device.h
index ab8dfc0..5258d5d 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -47,6 +47,23 @@ extern int __must_check bus_create_file(struct bus_type *,
struct bus_attribute *);
extern void bus_remove_file(struct bus_type *, struct bus_attribute *);

+/**
+ * struct bus_type - The bus type of the device .
+ *
+ * @name: The name of the bus
+ * @bus_attrs: The attributes of the bus
+ * @dev_attrs: The default attributes of the devices on the bus
+ * @drv_attrs: The default attributes of the device drivers on the bus
+ * @match: Attaching drivers to devices
+ * @uevent: Add the environment variable for device plug
+ * @probe: Probe the device
+ * @remove: Remove the device
+ * @shutdown: Shutdown method
+ * @suspend: Suspend method
+ * @resume: Resume method
+ * @pm: Device power management operations
+ * @p: The private data the subsystem
+ */
struct bus_type {
const char *name;
struct bus_attribute *bus_attrs;
@@ -119,6 +136,23 @@ extern int bus_unregister_notifier(struct bus_type *bus,
extern struct kset *bus_get_kset(struct bus_type *bus);
extern struct klist *bus_get_device_klist(struct bus_type *bus);

+/**
+ * struct device_driver - The basic device driver structure
+ * @name: Name of the device driver
+ * @bus: The bus the device driver belongs to
+ * @owner: The driver's owner
+ * @mod_name: Used for built-in modules
+ * @suppress_bind_attrs:Disables bind/unbind via sysfs
+ * @of_match_table:Id table for matching the driver to device
+ * @probe: Called to bound a driver to the device
+ * @remove: Called to unbind a driver from a device
+ * @shutdown: Called when shutdown
+ * @suspend: Called to put the device in a low power state
+ * @resume: Used to bring a device from a low power state
+ * @groups: Driver's attribute groups
+ * @pm: Device's power management operations
+ * @p: Driver's private data
+ */
struct device_driver {
const char *name;
struct bus_type *bus;
@@ -185,8 +219,24 @@ struct device *driver_find_device(struct device_driver *drv,
struct device *start, void *data,
int (*match)(struct device *dev, void *data));

-/*
- * device classes
+/**
+ * struct class - device classes
+ * @name: Name of the class
+ * @owner: Class' owner
+ * @class_attrs:The attributes of the class
+ * @dev_attrs: The default attributes of the device belongs to the class
+ * @dev_bin_attrs:The default binary attributes of the device belongs to the class
+ * @dev_kobj: Kobject of the class
+ * @dev_uevent: Used to plug
+ * @devnode: Callback to provide the devtmpfs
+ * @class_release:Called to release the class
+ * @dev_release:Called to release the device
+ * @suspend: Used to put the device to a low power state
+ * @resume: Used to bring the device from a low power state
+ * @ns_type: Callbacks so sysfs can detemine namespaces
+ * @namespace: Namespace of the device
+ * @pm: The default device power management operations
+ * @p: The private data of the subsystem
*/
struct class {
const char *name;
@@ -401,6 +451,54 @@ struct device_dma_parameters {
unsigned long segment_boundary_mask;
};

+/**
+ * struct device - The basic device structure.
+ * @parent: Parent of the device.
+ * @p: Hold the private to the driver core portions of the device.
+ * See the comment of the struct device_private for detail.
+ * @kobj: A top-level, abstract class from which other classes are derived.
+ * @init_name: Initial name of the device.
+ * @type: The type of device.
+ * This identifies the device type and carries type-specific
+ * information.
+ * @mutex: Mutex to synchronize calls to its driver.
+ * @bus: Type of bus device is on.
+ * @driver: Which driver has allocated this
+ * @platform_data:Platform data specific to the device.
+ * Example..For devices on custom boards, as typical of embedded
+ * and SOC based hardware, Linux often uses platform_data to point
+ * to board-specific structures describing devices and how they
+ * are wired. That can include what ports are available, chip
+ * variants, which GPIO pins act in what additional roles, and so
+ * on. This shrinks the "Board Support Packages" (BSPs) and
+ * minimizes board-specific #ifdefs in drivers.
+ * @power: For device power management.
+ * See the Documentation/power/devices.txt for details.
+ * @pwr_domain: Provide callbacks that are executed during system suspend,
+ * hibernation, system resume and during runtime PM transitions
+ * along with subsystem-level and driver-level callbacks.
+ * @numa_node: NUMA node this device is close to.
+ * @dma_mask: Dma mask (if dma'ble device).
+ * @coherent_dma_mask:Like dma_mask, but for alloc_coherent mapping as not all
+ * hardware supports 64 bit addresses for consistent allocations
+ * such description.
+ * @dma_parms: A low level driver may set these to teach IOMMU code about
+ * segment limitations.
+ * @dma_pools: Dma pools (if dma'ble device) .
+ * @dma_mem: Internal for coherent mem override.
+ * @archdata: For arch specific additions.
+ * @of_node: Associated device tree node.
+ * @of_match: Matching of_device_id from driver.
+ * @devt: For creating the sysfs "dev".
+ * @devres_lock:Spinlock to protect the resource of the device.
+ * @devres_head:The resources list of the device.
+ * @knode_class:The node used to add the device to the class list.
+ * @class: The class of the device.
+ * @groups: Optional attribute groups.
+ * @release: Callback to free the device after all references have
+ * gone away. This should be set by the allocator of the
+ * device (i.e. the bus driver that discovered the device).
+ */
struct device {
struct device *parent;

@@ -611,7 +709,7 @@ extern int (*platform_notify)(struct device *dev);
extern int (*platform_notify_remove)(struct device *dev);


-/**
+/*
* get_device - atomically increment the reference count for the device.
*
*/
--
1.7.4.1


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