standard-headers/linux/input.h

1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
3  * Copyright (c) 1999-2002 Vojtech Pavlik
15 #include "standard-headers/linux/types.h"
17 #include "standard-headers/linux/input-event-codes.h"
53  * IOCTLs (0x00 - 0x7f)
64  * struct input_absinfo - used by EVIOCGABS/EVIOCSABS ioctls
100  * struct input_keymap_entry - used by EVIOCGKEYCODE/EVIOCSKEYCODE ioctls
101  * @scancode: scancode represented in machine-endian form.
145  * EVIOCGMTSLOTS(len) - get MT slot values
166  * If the request code is not an ABS_MT value, -EINVAL is returned.
187  * EVIOCGMASK - Retrieve current event mask
189  * This ioctl allows user to retrieve the current event mask for specific
194  * The event mask is a per-client mask that specifies which events are
212  * if the receive-buffer points to invalid memory, or EINVAL if the kernel
215 #define EVIOCGMASK		_IOR('E', 0x92, struct input_mask)	/* Get event-masks */
218  * EVIOCSMASK - Set event mask
221  * current event mask, this changes the client's event mask for a specific
222  * type.  See EVIOCGMASK for a description of event-masks and the
223  * argument-type.
231  * all known event-codes, all remaining codes are automatically cleared and
235  * returned if the receive-buffer points to invalid memory. EINVAL is returned
238 #define EVIOCSMASK		_IOW('E', 0x93, struct input_mask)	/* Set event-masks */
286  * Values describing the status of a force-feedback effect
298  * All duration values are expressed in ms. Values above 32767 ms (0x7fff)
303  * struct ff_replay - defines scheduling of the force-feedback effect
305  * @delay: delay before effect should start playing
309 	uint16_t delay;  member
313  * struct ff_trigger - defines what triggers the force-feedback effect
315  * @interval: controls how soon the effect can be re-triggered
323  * struct ff_envelope - generic force-feedback effect envelope
324  * @attack_length: duration of the attack (ms)
326  * @fade_length: duration of fade (ms)
330  * envelope force-feedback core will convert to positive/negative
332  * Valid range for the attack and fade levels is 0x0000 - 0x7fff
342  * struct ff_constant_effect - defines parameters of a constant force-feedback effect
352  * struct ff_ramp_effect - defines parameters of a ramp force-feedback effect
364  * struct ff_condition_effect - defines a spring or friction force-feedback effect
385  * struct ff_periodic_effect - defines parameters of a periodic force-feedback effect
387  * @period: period of the wave (ms)
395  * Known waveforms - FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP,
416  * struct ff_rumble_effect - defines parameters of a periodic force-feedback effect
429  * struct ff_effect - defines force feedback effect
436  * @u: effect-specific structure (one of ff_constant_effect, ff_ramp_effect,
441  * To create a new effect application should set its @id to -1; the kernel
446  *	0 deg -> 0x0000 (down)
447  *	90 deg -> 0x4000 (left)
448  *	180 deg -> 0x8000 (up)
449  *	270 deg -> 0xC000 (right)
460 		struct ff_ramp_effect ramp;  member
505  * ff->playback(effect_id = FF_GAIN) is the first effect_id to
506  * cause a collision with another ff method, in this case ff->set_gain().
507  * Therefore the greatest safe value for effect_id is FF_GAIN - 1,