#include <input.h>

Data Fields
__u16	type

__s16	id

__u16	direction

struct ff_trigger	trigger

struct ff_replay	replay

union {
struct ff_constant_effect constant

struct ff_ramp_effect ramp

struct ff_periodic_effect periodic

struct ff_condition_effect condition [2]

struct ff_rumble_effect rumble

}	u

Detailed Description

struct ff_effect - defines force feedback effect : type of the effect (FF_CONSTANT, FF_PERIODIC, FF_RAMP, FF_SPRING, FF_FRICTION, FF_DAMPER, FF_RUMBLE, FF_INERTIA, or FF_CUSTOM) : an unique id assigned to an effect : direction of the effect : trigger conditions (struct ff_trigger) : scheduling of the effect (struct ff_replay) : effect-specific structure (one of ff_constant_effect, ff_ramp_effect, ff_periodic_effect, ff_condition_effect, ff_rumble_effect) further defining effect parameters

This structure is sent through ioctl from the application to the driver. To create a new effect application should set its to -1; the kernel will return assigned which can later be used to update or delete this effect.

Direction of the effect is encoded as follows: 0 deg -> 0x0000 (down) 90 deg -> 0x4000 (left) 180 deg -> 0x8000 (up) 270 deg -> 0xC000 (right)

Definition at line 1095 of file input.h.