hid-core.c File Reference

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mm.h>
#include <linux/spinlock.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>
#include <linux/input.h>
#include <linux/wait.h>
#include <linux/vmalloc.h>
#include <linux/sched.h>
#include <linux/semaphore.h>
#include <linux/hid.h>
#include <linux/hiddev.h>
#include <linux/hid-debug.h>
#include <linux/hidraw.h>
#include "hid-ids.h"

Go to the source code of this file.

Data Structures
struct	hid_dynid

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	DRIVER_DESC   "HID core driver"
#define	DRIVER_LICENSE   "GPL"

Functions
	module_param_named (debug, hid_debug, int, 0600)
	MODULE_PARM_DESC (debug,"toggle HID debugging messages")
	EXPORT_SYMBOL_GPL (hid_debug)
	module_param_named (ignore_special_drivers, hid_ignore_special_drivers, int, 0600)
	MODULE_PARM_DESC (debug,"Ignore any special drivers and handle all devices by generic driver")
struct hid_report *	hid_register_report (struct hid_device *device, unsigned type, unsigned id)
	EXPORT_SYMBOL_GPL (hid_register_report)
int	hid_parse_report (struct hid_device *hid, __u8 *start, unsigned size)
	EXPORT_SYMBOL_GPL (hid_parse_report)
int	hid_open_report (struct hid_device *device)
	EXPORT_SYMBOL_GPL (hid_open_report)
void	hid_output_report (struct hid_report *report, __u8 *data)
	EXPORT_SYMBOL_GPL (hid_output_report)
int	hid_set_field (struct hid_field *field, unsigned offset, __s32 value)
	EXPORT_SYMBOL_GPL (hid_set_field)
int	hid_report_raw_event (struct hid_device *hid, int type, u8 *data, int size, int interrupt)
	EXPORT_SYMBOL_GPL (hid_report_raw_event)
int	hid_input_report (struct hid_device *hid, int type, u8 *data, int size, int interrupt)
	EXPORT_SYMBOL_GPL (hid_input_report)
struct hid_device_id *	hid_match_id (struct hid_device *hdev, const struct hid_device_id *id)
int	hid_connect (struct hid_device *hdev, unsigned int connect_mask)
	EXPORT_SYMBOL_GPL (hid_connect)
void	hid_disconnect (struct hid_device *hdev)
	EXPORT_SYMBOL_GPL (hid_disconnect)
int	hid_add_device (struct hid_device *hdev)
	EXPORT_SYMBOL_GPL (hid_add_device)
struct hid_device *	hid_allocate_device (void)
	EXPORT_SYMBOL_GPL (hid_allocate_device)
void	hid_destroy_device (struct hid_device *hdev)
	EXPORT_SYMBOL_GPL (hid_destroy_device)
int	__hid_register_driver (struct hid_driver *hdrv, struct module *owner, const char *mod_name)
	EXPORT_SYMBOL_GPL (__hid_register_driver)
void	hid_unregister_driver (struct hid_driver *hdrv)
	EXPORT_SYMBOL_GPL (hid_unregister_driver)
int	hid_check_keys_pressed (struct hid_device *hid)
	EXPORT_SYMBOL_GPL (hid_check_keys_pressed)
	module_init (hid_init)
	module_exit (hid_exit)
	MODULE_AUTHOR ("Andreas Gal")
	MODULE_AUTHOR ("Vojtech Pavlik")
	MODULE_AUTHOR ("Jiri Kosina")
	MODULE_LICENSE (DRIVER_LICENSE)

Variables
int	hid_debug = 0

Macro Definition Documentation

#define DRIVER_DESC   "HID core driver"

Definition at line 45 of file hid-core.c.

#define DRIVER_LICENSE   "GPL"

Definition at line 46 of file hid-core.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 17 of file hid-core.c.

Function Documentation

int __hid_register_driver	(	struct hid_driver *	hdrv,
		struct module *	owner,
		const char *	mod_name
	)

Definition at line 2310 of file hid-core.c.

EXPORT_SYMBOL_GPL

(

hid_debug

)

EXPORT_SYMBOL_GPL

(

hid_register_report

)

EXPORT_SYMBOL_GPL

(

hid_parse_report

)

EXPORT_SYMBOL_GPL

(

hid_open_report

)

EXPORT_SYMBOL_GPL

(

hid_output_report

)

EXPORT_SYMBOL_GPL

(

hid_set_field

)

EXPORT_SYMBOL_GPL

(

hid_report_raw_event

)

EXPORT_SYMBOL_GPL

(

hid_input_report

)

EXPORT_SYMBOL_GPL

(

hid_connect

)

EXPORT_SYMBOL_GPL

(

hid_disconnect

)

EXPORT_SYMBOL_GPL

(

hid_add_device

)

EXPORT_SYMBOL_GPL

(

hid_allocate_device

)

EXPORT_SYMBOL_GPL

(

hid_destroy_device

)

EXPORT_SYMBOL_GPL

(

__hid_register_driver

)

EXPORT_SYMBOL_GPL

(

hid_unregister_driver

)

EXPORT_SYMBOL_GPL

(

hid_check_keys_pressed

)

int hid_add_device

(

struct hid_device *

hdev

)

Definition at line 2201 of file hid-core.c.

struct hid_device* hid_allocate_device ( void  )

read

hid_allocate_device - allocate new hid device descriptor

Allocate and initialize hid device, so that hid_destroy_device might be used to free it.

New hid_device pointer is returned on success, otherwise ERR_PTR encoded error value.

Definition at line 2260 of file hid-core.c.

int hid_check_keys_pressed

(

struct hid_device *

hid

)

Definition at line 2343 of file hid-core.c.

int hid_connect	(	struct hid_device *	hdev,
		unsigned int	connect_mask
	)

Definition at line 1361 of file hid-core.c.

void hid_destroy_device

(

struct hid_device *

hdev

)

hid_destroy_device - free previously allocated device

: hid device

If you allocate hid_device through hid_allocate_device, you should ever free by this function.

Definition at line 2303 of file hid-core.c.

void hid_disconnect

(

struct hid_device *

hdev

)

Definition at line 1449 of file hid-core.c.

int hid_input_report	(	struct hid_device *	hid,
		int	type,
		u8 *	data,
		int	size,
		int	interrupt
	)

hid_input_report - report data from lower layer (usb, bt...)

: hid device : HID report type (HID_*_REPORT) : report contents : size of data parameter : distinguish between interrupt and control transfers

This is data entry for lower layers.

Definition at line 1231 of file hid-core.c.

struct hid_device_id* hid_match_id ( struct hid_device *  hdev, const struct hid_device_id *  id  )

read

Definition at line 1314 of file hid-core.c.

int hid_open_report

(

struct hid_device *

device

)

hid_open_report - open a driver-specific device report

: hid device

Parse a report description into a hid_device structure. Reports are enumerated, fields are attached to these reports. 0 returned on success, otherwise nonzero error value.

This function (or the equivalent hid_parse() macro) should only be called from probe() in drivers, before starting the device.

Definition at line 754 of file hid-core.c.

void hid_output_report	(	struct hid_report *	report,
		__u8 *	data
	)

Definition at line 1112 of file hid-core.c.

int hid_parse_report	(	struct hid_device *	hid,
		__u8 *	start,
		unsigned	size
	)

hid_parse_report - parse device report

: hid device : report start : report size

Allocate the device report as read by the bus driver. This function should only be called from parse() in ll drivers.

Definition at line 732 of file hid-core.c.

struct hid_report* hid_register_report ( struct hid_device *  device, unsigned  type, unsigned  id  )

read

Definition at line 61 of file hid-core.c.

int hid_report_raw_event	(	struct hid_device *	hid,
		int	type,
		u8 *	data,
		int	size,
		int	interrupt
	)

Definition at line 1170 of file hid-core.c.

int hid_set_field	(	struct hid_field *	field,
		unsigned	offset,
		__s32	value
	)

Definition at line 1131 of file hid-core.c.

void hid_unregister_driver

(

struct hid_driver *

hdrv

)

Definition at line 2335 of file hid-core.c.

MODULE_AUTHOR

(

"Andreas Gal"

)

MODULE_AUTHOR

(

"Vojtech Pavlik"

)

MODULE_AUTHOR

(

"Jiri Kosina"

)

module_exit

(

hid_exit

)

module_init

(

hid_init

)

MODULE_LICENSE

(

DRIVER_LICENSE

)

module_param_named	(	debug	,
		hid_debug	,
		int	,
		0600
	)

module_param_named	(	ignore_special_drivers	,
		hid_ignore_special_drivers	,
		int	,
		0600
	)

MODULE_PARM_DESC	(	debug	,
		"toggle HID debugging messages"
	)

MODULE_PARM_DESC	(	debug	,
		"Ignore any special drivers and handle all devices by generic driver"
	)

Variable Documentation

int hid_debug = 0

Definition at line 48 of file hid-core.c.