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authorWanlong Gao <wanlong.gao@gmail.com>2011-05-04 23:55:37 (GMT)
committerGreg Kroah-Hartman <gregkh@suse.de>2011-05-07 01:01:05 (GMT)
commit63dc355a5a8cf296e2b1cc2e4192190dca221129 (patch)
tree6dc32f94ef4bb41197e9dbdd73b416afc16ca874 /Documentation/driver-model
parent880ffb5c6c5c8c8c6efd9efe9355317322b4603b (diff)
driver core: remove the driver-model structures from the documentation
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 With another patch add them to device.h, since they are out of date.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@gmail.com> Acked-by: Harry Wei <harryxiyou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/driver-model')
-rw-r--r--Documentation/driver-model/bus.txt19
-rw-r--r--Documentation/driver-model/class.txt17
-rw-r--r--Documentation/driver-model/device.txt91
-rw-r--r--Documentation/driver-model/driver.txt18
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

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