libevdev: /home/whot/code/libevdev/release/libevdev/build.FT9Xt7SR1w/libevdev/libevdev.h File Reference

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libevdev.h File Reference
`#include <linux/input.h>`
`#include <stdarg.h>`

Go to the source code of this file.

## Macros
#define | LIBEVDEV_ATTRIBUTE_PRINTF(_format, _args)
#define | LIBEVDEV_DEPRECATED

## Typedefs
typedef void(* | libevdev_log_func_t) (enum libevdev_log_priority priority, void *data, const char *file, int line, const char *func, const char *format, va_list args)
| Logging function called by library-internal logging.
typedef void(* | libevdev_device_log_func_t) (const struct libevdev *dev, enum libevdev_log_priority priority, void *data, const char *file, int line, const char *func, const char *format, va_list args)
| Logging function called by library-internal logging for a specific libevdev context.

## Enumerations
enum | libevdev_read_flag { LIBEVDEV_READ_FLAG_SYNC , LIBEVDEV_READ_FLAG_NORMAL , LIBEVDEV_READ_FLAG_FORCE_SYNC , LIBEVDEV_READ_FLAG_BLOCKING }
enum | libevdev_log_priority { LIBEVDEV_LOG_ERROR , LIBEVDEV_LOG_INFO , LIBEVDEV_LOG_DEBUG }
enum | libevdev_grab_mode { LIBEVDEV_GRAB , LIBEVDEV_UNGRAB }
enum | libevdev_read_status { LIBEVDEV_READ_STATUS_SUCCESS , LIBEVDEV_READ_STATUS_SYNC }
enum | libevdev_led_value { LIBEVDEV_LED_ON , LIBEVDEV_LED_OFF }

## Functions
struct libevdev * | libevdev_new (void)
| Initialize a new libevdev device.
int | libevdev_new_from_fd (int fd, struct libevdev **dev)
| Initialize a new libevdev device from the given fd.
void | libevdev_free (struct libevdev *dev)
| Clean up and free the libevdev struct.
void | libevdev_set_log_function (libevdev_log_func_t logfunc, void *data)
| Set a printf-style logging handler for library-internal logging.
void | libevdev_set_log_priority (enum libevdev_log_priority priority)
| Define the minimum level to be printed to the log handler.
enum libevdev_log_priority | libevdev_get_log_priority (void)
| Return the current log priority level.
void | libevdev_set_device_log_function (struct libevdev *dev, libevdev_device_log_func_t logfunc, enum libevdev_log_priority priority, void *data)
| Set a printf-style logging handler for library-internal logging for this device context.
int | libevdev_grab (struct libevdev *dev, enum libevdev_grab_mode grab)
| Grab or ungrab the device through a kernel EVIOCGRAB.
int | libevdev_set_fd (struct libevdev *dev, int fd)
| Set the fd for this struct and initialize internal data.
int | libevdev_change_fd (struct libevdev *dev, int fd)
| Change the fd for this device, without re-reading the actual device.
int | libevdev_get_fd (const struct libevdev *dev)
int | libevdev_next_event (struct libevdev *dev, unsigned int flags, struct input_event *ev)
| Get the next event from the device.
int | libevdev_has_event_pending (struct libevdev *dev)
| Check if there are events waiting for us.
const char * | libevdev_get_name (const struct libevdev *dev)
| Retrieve the device's name, either as set by the caller or as read from the kernel.
void | libevdev_set_name (struct libevdev *dev, const char *name)
| Change the device's name as returned by libevdev_get_name().
const char * | libevdev_get_phys (const struct libevdev *dev)
| Retrieve the device's physical location, either as set by the caller or as read from the kernel.
void | libevdev_set_phys (struct libevdev *dev, const char *phys)
| Change the device's physical location as returned by libevdev_get_phys().
const char * | libevdev_get_uniq (const struct libevdev *dev)
| Retrieve the device's unique identifier, either as set by the caller or as read from the kernel.
void | libevdev_set_uniq (struct libevdev *dev, const char *uniq)
| Change the device's unique identifier as returned by libevdev_get_uniq().
int | libevdev_get_id_product (const struct libevdev *dev)
void | libevdev_set_id_product (struct libevdev *dev, int product_id)
int | libevdev_get_id_vendor (const struct libevdev *dev)
void | libevdev_set_id_vendor (struct libevdev *dev, int vendor_id)
int | libevdev_get_id_bustype (const struct libevdev *dev)
void | libevdev_set_id_bustype (struct libevdev *dev, int bustype)
int | libevdev_get_id_version (const struct libevdev *dev)
void | libevdev_set_id_version (struct libevdev *dev, int version)
int | libevdev_get_driver_version (const struct libevdev *dev)
int | libevdev_has_property (const struct libevdev *dev, unsigned int prop)
int | libevdev_enable_property (struct libevdev *dev, unsigned int prop)
int | libevdev_disable_property (struct libevdev *dev, unsigned int prop)
int | libevdev_has_event_type (const struct libevdev *dev, unsigned int type)
int | libevdev_has_event_code (const struct libevdev *dev, unsigned int type, unsigned int code)
int | libevdev_get_abs_minimum (const struct libevdev *dev, unsigned int code)
| Get the minimum axis value for the given axis, as advertised by the kernel.
int | libevdev_get_abs_maximum (const struct libevdev *dev, unsigned int code)
| Get the maximum axis value for the given axis, as advertised by the kernel.
int | libevdev_get_abs_fuzz (const struct libevdev *dev, unsigned int code)
| Get the axis fuzz for the given axis, as advertised by the kernel.
int | libevdev_get_abs_flat (const struct libevdev *dev, unsigned int code)
| Get the axis flat for the given axis, as advertised by the kernel.
int | libevdev_get_abs_resolution (const struct libevdev *dev, unsigned int code)
| Get the axis resolution for the given axis, as advertised by the kernel.
const struct input_absinfo * | libevdev_get_abs_info (const struct libevdev *dev, unsigned int code)
| Get the axis info for the given axis, as advertised by the kernel.
int | libevdev_get_event_value (const struct libevdev *dev, unsigned int type, unsigned int code)
| Behaviour of this function is undefined if the device does not provide the event.
int | libevdev_set_event_value (struct libevdev *dev, unsigned int type, unsigned int code, int value)
| Set the value for a given event type and code.
int | libevdev_fetch_event_value (const struct libevdev *dev, unsigned int type, unsigned int code, int *value)
| Fetch the current value of the event type.
int | libevdev_get_slot_value (const struct libevdev *dev, unsigned int slot, unsigned int code)
| Return the current value of the code for the given slot.
int | libevdev_set_slot_value (struct libevdev *dev, unsigned int slot, unsigned int code, int value)
| Set the value for a given code for the given slot.
int | libevdev_fetch_slot_value (const struct libevdev *dev, unsigned int slot, unsigned int code, int *value)
| Fetch the current value of the code for the given slot.
int | libevdev_get_num_slots (const struct libevdev *dev)
| Get the number of slots supported by this device.
int | libevdev_get_current_slot (const struct libevdev *dev)
| Get the currently active slot.
void | libevdev_set_abs_minimum (struct libevdev *dev, unsigned int code, int val)
| Change the minimum for the given EV_ABS event code, if the code exists.
void | libevdev_set_abs_maximum (struct libevdev *dev, unsigned int code, int val)
| Change the maximum for the given EV_ABS event code, if the code exists.
void | libevdev_set_abs_fuzz (struct libevdev *dev, unsigned int code, int val)
| Change the fuzz for the given EV_ABS event code, if the code exists.
void | libevdev_set_abs_flat (struct libevdev *dev, unsigned int code, int val)
| Change the flat for the given EV_ABS event code, if the code exists.
void | libevdev_set_abs_resolution (struct libevdev *dev, unsigned int code, int val)
| Change the resolution for the given EV_ABS event code, if the code exists.
void | libevdev_set_abs_info (struct libevdev *dev, unsigned int code, const struct input_absinfo *abs)
| Change the abs info for the given EV_ABS event code, if the code exists.
int | libevdev_enable_event_type (struct libevdev *dev, unsigned int type)
| Forcibly enable an event type on this device, even if the underlying device does not support it.
int | libevdev_disable_event_type (struct libevdev *dev, unsigned int type)
| Forcibly disable an event type on this device, even if the underlying device provides it.
int | libevdev_enable_event_code (struct libevdev *dev, unsigned int type, unsigned int code, const void *data)
| Forcibly enable an event code on this device, even if the underlying device does not support it.
int | libevdev_disable_event_code (struct libevdev *dev, unsigned int type, unsigned int code)
| Forcibly disable an event code on this device, even if the underlying device provides it.
int | libevdev_kernel_set_abs_info (struct libevdev *dev, unsigned int code, const struct input_absinfo *abs)
| Set the device's EV_ABS axis to the value defined in the abs parameter.
int | libevdev_kernel_set_led_value (struct libevdev *dev, unsigned int code, enum libevdev_led_value value)
| Turn an LED on or off.
int | libevdev_kernel_set_led_values (struct libevdev *dev,...)
| Turn multiple LEDs on or off simultaneously.
int | libevdev_set_clock_id (struct libevdev *dev, int clockid)
| Set the clock ID to be used for timestamps.
int | libevdev_event_is_type (const struct input_event *ev, unsigned int type)
| Helper function to check if an event is of a specific type.
int | libevdev_event_is_code (const struct input_event *ev, unsigned int type, unsigned int code)
| Helper function to check if an event is of a specific type and code.
const char * | libevdev_event_type_get_name (unsigned int type)
const char * | libevdev_event_code_get_name (unsigned int type, unsigned int code)
const char * | libevdev_event_value_get_name (unsigned int type, unsigned int code, int value)
| This function resolves the event value for a code.
const char * | libevdev_property_get_name (unsigned int prop)
int | libevdev_event_type_get_max (unsigned int type)
int | libevdev_event_type_from_name (const char *name)
| Look up an event-type by its name.
int | libevdev_event_type_from_name_n (const char *name, size_t len)
| Look up an event-type by its name.
int | libevdev_event_code_from_name (unsigned int type, const char *name)
| Look up an event code by its type and name.
int | libevdev_event_code_from_name_n (unsigned int type, const char *name, size_t len)
| Look up an event code by its type and name.
int | libevdev_event_value_from_name (unsigned int type, unsigned int code, const char *name)
| Look up an event value by its type, code and name.
int | libevdev_event_type_from_code_name (const char *name)
| Look up an event type for a event code name.
int | libevdev_event_type_from_code_name_n (const char *name, size_t len)
| Look up an event type for a event code name.
int | libevdev_event_code_from_code_name (const char *name)
| Look up an event code by its name.
int | libevdev_event_code_from_code_name_n (const char *name, size_t len)
| Look up an event code by its name.
int | libevdev_event_value_from_name_n (unsigned int type, unsigned int code, const char *name, size_t len)
| Look up an event value by its type, code and name.
int | libevdev_property_from_name (const char *name)
| Look up an input property by its name.
int | libevdev_property_from_name_n (const char *name, size_t len)
| Look up an input property by its name.
int | libevdev_get_repeat (const struct libevdev *dev, int *delay, int *period)
| Get the repeat delay and repeat period values for this device.

## Macro Definition Documentation

## ◆ LIBEVDEV_ATTRIBUTE_PRINTF

#define LIBEVDEV_ATTRIBUTE_PRINTF | ( |  | _format,
|  |  | _args )

## ◆ LIBEVDEV_DEPRECATED

#define LIBEVDEV_DEPRECATED