Re: [PATCH-v6 2/2] Documentation:remove the driver-modelstructures from the docs

[Harry Wei]

On Thu, May 05, 2011 at 07:55:37AM +0800, Wanlong Gao wrote:
> From: Wanlong Gao <wanlong.gao@xxxxxxxxx>
> 
> 
> Remove the struct bus_type, class, device, device_driver from the
> driver-model docs. With another patch add them to device.h, since
> they are out of date. That will keep things up to date and provide
> a better way to document this stuff.
> 
> 
> Signed-off-by: Wanlong Gao <wanlong.gao@xxxxxxxxx>
Acked-by: Harry Wei <harryxiyou@xxxxxxxxx>
> ---
>  Documentation/driver-model/bus.txt    |   19 +-------
>  Documentation/driver-model/class.txt  |   17 +------
>  Documentation/driver-model/device.txt |   91 +--------------------------------
>  Documentation/driver-model/driver.txt |   18 +------
>  4 files changed, 4 insertions(+), 141 deletions(-)
> 
> diff --git a/Documentation/driver-model/bus.txt b/Documentation/driver-model/bus.txt
> index 5001b75..6754b2d 100644
> --- a/Documentation/driver-model/bus.txt
> +++ b/Documentation/driver-model/bus.txt
> @@ -3,24 +3,7 @@ Bus Types
>  
>  Definition
>  ~~~~~~~~~~
> -
> -struct bus_type {
> -	char			* name;
> -
> -	struct subsystem	subsys;
> -	struct kset		drivers;
> -	struct kset		devices;
> -
> -	struct bus_attribute	* bus_attrs;
> -	struct device_attribute	* dev_attrs;
> -	struct driver_attribute	* drv_attrs;
> -
> -	int		(*match)(struct device * dev, struct device_driver * drv);
> -	int		(*hotplug) (struct device *dev, char **envp, 
> -				    int num_envp, char *buffer, int buffer_size);
> -	int		(*suspend)(struct device * dev, pm_message_t state);
> -	int		(*resume)(struct device * dev);
> -};
> +See the kerneldoc for the struct bus_type.
>  
>  int bus_register(struct bus_type * bus);
>  
> diff --git a/Documentation/driver-model/class.txt b/Documentation/driver-model/class.txt
> index 548505f..1fefc48 100644
> --- a/Documentation/driver-model/class.txt
> +++ b/Documentation/driver-model/class.txt
> @@ -27,22 +27,7 @@ The device class structure looks like:
>  typedef int (*devclass_add)(struct device *);
>  typedef void (*devclass_remove)(struct device *);
>  
> -struct device_class {
> -	char			* name;
> -	rwlock_t		lock;
> -	u32			devnum;
> -	struct list_head	node;
> -
> -	struct list_head	drivers;
> -	struct list_head	intf_list;
> -
> -	struct driver_dir_entry	dir;
> -	struct driver_dir_entry	device_dir;
> -	struct driver_dir_entry	driver_dir;
> -
> -	devclass_add		add_device;
> -	devclass_remove		remove_device;
> -};
> +See the kerneldoc for the struct class.
>  
>  A typical device class definition would look like: 
>  
> diff --git a/Documentation/driver-model/device.txt b/Documentation/driver-model/device.txt
> index a124f31..b2ff426 100644
> --- a/Documentation/driver-model/device.txt
> +++ b/Documentation/driver-model/device.txt
> @@ -2,96 +2,7 @@
>  The Basic Device Structure
>  ~~~~~~~~~~~~~~~~~~~~~~~~~~
>  
> -struct device {
> -        struct list_head g_list;
> -        struct list_head node;
> -        struct list_head bus_list;
> -        struct list_head driver_list;
> -        struct list_head intf_list;
> -        struct list_head children;
> -        struct device   * parent;
> -
> -        char    name[DEVICE_NAME_SIZE];
> -        char    bus_id[BUS_ID_SIZE];
> -
> -        spinlock_t      lock;
> -        atomic_t        refcount;
> -
> -        struct bus_type * bus;
> -        struct driver_dir_entry dir;
> -
> -	u32		class_num;
> -
> -        struct device_driver *driver;
> -        void            *driver_data;
> -        void            *platform_data;
> -
> -        u32             current_state;
> -        unsigned char *saved_state;
> -
> -        void    (*release)(struct device * dev);
> -};
> -
> -Fields 
> -~~~~~~
> -g_list:	Node in the global device list.
> -
> -node:	Node in device's parent's children list.
> -
> -bus_list: Node in device's bus's devices list.
> -
> -driver_list:   Node in device's driver's devices list.
> -
> -intf_list:     List of intf_data. There is one structure allocated for
> -	       each interface that the device supports.
> -
> -children:      List of child devices.
> -
> -parent:        *** FIXME ***
> -
> -name:	       ASCII description of device. 
> -	       Example: " 3Com Corporation 3c905 100BaseTX [Boomerang]"
> -
> -bus_id:	       ASCII representation of device's bus position. This 
> -	       field should be a name unique across all devices on the
> -	       bus type the device belongs to. 
> -
> -	       Example: PCI bus_ids are in the form of
> -	       <bus number>:<slot number>.<function number> 
> -	       This name is unique across all PCI devices in the system.
> -
> -lock:	       Spinlock for the device. 
> -
> -refcount:      Reference count on the device.
> -
> -bus:	       Pointer to struct bus_type that device belongs to.
> -
> -dir:	       Device's sysfs directory.
> -
> -class_num:     Class-enumerated value of the device.
> -
> -driver:	       Pointer to struct device_driver that controls the device.
> -
> -driver_data:   Driver-specific data.
> -
> -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.
> -
> -current_state: Current power state of the device.
> -
> -saved_state:   Pointer to saved state of the device. This is usable by
> -	       the device driver controlling the device.
> -
> -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).
> +See the kerneldoc for the struct device.
>  
>  
>  Programming Interface
> diff --git a/Documentation/driver-model/driver.txt b/Documentation/driver-model/driver.txt
> index d2cd6fb..4421135 100644
> --- a/Documentation/driver-model/driver.txt
> +++ b/Documentation/driver-model/driver.txt
> @@ -1,23 +1,7 @@
>  
>  Device Drivers
>  
> -struct device_driver {
> -        char                    * name;
> -        struct bus_type         * bus;
> -
> -        struct completion	unloaded;
> -        struct kobject		kobj;
> -        list_t                  devices;
> -
> -        struct module		*owner;
> -
> -        int     (*probe)        (struct device * dev);
> -        int     (*remove)       (struct device * dev);
> -
> -        int     (*suspend)      (struct device * dev, pm_message_t state);
> -        int     (*resume)       (struct device * dev);
> -};
> -
> +See the kerneldoc for the struct device_driver.
>  
>  
>  Allocation
> -- 
> 1.7.4.1
> 
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