5 * Copyright (c) 1999-2002 Vojtech Pavlik
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
13 #include <linux/time.h>
14 #include <linux/list.h>
17 #include <sys/ioctl.h>
18 #include <asm/types.h>
22 * The event structure itself
36 #define EV_VERSION 0x010000
39 * IOCTLs (0x00 - 0x7f)
49 struct input_absinfo {
57 #define EVIOCGVERSION _IOR('E', 0x01, int) /* get driver version */
58 #define EVIOCGID _IOR('E', 0x02, struct input_id) /* get device ID */
59 #define EVIOCGKEYCODE _IOR('E', 0x04, int[2]) /* get keycode */
60 #define EVIOCSKEYCODE _IOW('E', 0x04, int[2]) /* set keycode */
62 #define EVIOCGNAME(len) _IOC(_IOC_READ, 'E', 0x06, len) /* get device name */
63 #define EVIOCGPHYS(len) _IOC(_IOC_READ, 'E', 0x07, len) /* get physical location */
64 #define EVIOCGUNIQ(len) _IOC(_IOC_READ, 'E', 0x08, len) /* get unique identifier */
66 #define EVIOCGKEY(len) _IOC(_IOC_READ, 'E', 0x18, len) /* get global keystate */
67 #define EVIOCGLED(len) _IOC(_IOC_READ, 'E', 0x19, len) /* get all LEDs */
68 #define EVIOCGSND(len) _IOC(_IOC_READ, 'E', 0x1a, len) /* get all sounds status */
70 #define EVIOCGBIT(ev,len) _IOC(_IOC_READ, 'E', 0x20 + ev, len) /* get event bits */
71 #define EVIOCGABS(abs) _IOR('E', 0x40 + abs, struct input_absinfo) /* get abs value/limits */
72 #define EVIOCSABS(abs) _IOW('E', 0xc0 + abs, struct input_absinfo) /* set abs value/limits */
74 #define EVIOCSFF _IOC(_IOC_WRITE, 'E', 0x80, sizeof(struct ff_effect)) /* send a force effect to a force feedback device */
75 #define EVIOCRMFF _IOW('E', 0x81, int) /* Erase a force effect */
76 #define EVIOCGEFFECTS _IOR('E', 0x84, int) /* Report number of effects playable at the same time */
78 #define EVIOCGRAB _IOW('E', 0x90, int) /* Grab/Release device */
94 #define EV_FF_STATUS 0x17
98 * Synchronization events.
108 #define KEY_RESERVED 0
122 #define KEY_BACKSPACE 14
134 #define KEY_LEFTBRACE 26
135 #define KEY_RIGHTBRACE 27
137 #define KEY_LEFTCTRL 29
147 #define KEY_SEMICOLON 39
148 #define KEY_APOSTROPHE 40
150 #define KEY_LEFTSHIFT 42
151 #define KEY_BACKSLASH 43
162 #define KEY_RIGHTSHIFT 54
163 #define KEY_KPASTERISK 55
164 #define KEY_LEFTALT 56
166 #define KEY_CAPSLOCK 58
177 #define KEY_NUMLOCK 69
178 #define KEY_SCROLLLOCK 70
182 #define KEY_KPMINUS 74
186 #define KEY_KPPLUS 78
193 #define KEY_ZENKAKUHANKAKU 85
198 #define KEY_KATAKANA 90
199 #define KEY_HIRAGANA 91
200 #define KEY_HENKAN 92
201 #define KEY_KATAKANAHIRAGANA 93
202 #define KEY_MUHENKAN 94
203 #define KEY_KPJPCOMMA 95
204 #define KEY_KPENTER 96
205 #define KEY_RIGHTCTRL 97
206 #define KEY_KPSLASH 98
208 #define KEY_RIGHTALT 100
209 #define KEY_LINEFEED 101
212 #define KEY_PAGEUP 104
214 #define KEY_RIGHT 106
217 #define KEY_PAGEDOWN 109
218 #define KEY_INSERT 110
219 #define KEY_DELETE 111
220 #define KEY_MACRO 112
222 #define KEY_VOLUMEDOWN 114
223 #define KEY_VOLUMEUP 115
224 #define KEY_POWER 116
225 #define KEY_KPEQUAL 117
226 #define KEY_KPPLUSMINUS 118
227 #define KEY_PAUSE 119
229 #define KEY_KPCOMMA 121
230 #define KEY_HANGUEL 122
231 #define KEY_HANJA 123
233 #define KEY_LEFTMETA 125
234 #define KEY_RIGHTMETA 126
235 #define KEY_COMPOSE 127
238 #define KEY_AGAIN 129
239 #define KEY_PROPS 130
241 #define KEY_FRONT 132
244 #define KEY_PASTE 135
250 #define KEY_SETUP 141
251 #define KEY_SLEEP 142
252 #define KEY_WAKEUP 143
254 #define KEY_SENDFILE 145
255 #define KEY_DELETEFILE 146
257 #define KEY_PROG1 148
258 #define KEY_PROG2 149
260 #define KEY_MSDOS 151
261 #define KEY_COFFEE 152
262 #define KEY_DIRECTION 153
263 #define KEY_CYCLEWINDOWS 154
265 #define KEY_BOOKMARKS 156
266 #define KEY_COMPUTER 157
268 #define KEY_FORWARD 159
269 #define KEY_CLOSECD 160
270 #define KEY_EJECTCD 161
271 #define KEY_EJECTCLOSECD 162
272 #define KEY_NEXTSONG 163
273 #define KEY_PLAYPAUSE 164
274 #define KEY_PREVIOUSSONG 165
275 #define KEY_STOPCD 166
276 #define KEY_RECORD 167
277 #define KEY_REWIND 168
278 #define KEY_PHONE 169
280 #define KEY_CONFIG 171
281 #define KEY_HOMEPAGE 172
282 #define KEY_REFRESH 173
286 #define KEY_SCROLLUP 177
287 #define KEY_SCROLLDOWN 178
288 #define KEY_KPLEFTPAREN 179
289 #define KEY_KPRIGHTPAREN 180
304 #define KEY_PLAYCD 200
305 #define KEY_PAUSECD 201
306 #define KEY_PROG3 202
307 #define KEY_PROG4 203
308 #define KEY_SUSPEND 205
309 #define KEY_CLOSE 206
311 #define KEY_FASTFORWARD 208
312 #define KEY_BASSBOOST 209
313 #define KEY_PRINT 210
315 #define KEY_CAMERA 212
316 #define KEY_SOUND 213
317 #define KEY_QUESTION 214
318 #define KEY_EMAIL 215
320 #define KEY_SEARCH 217
321 #define KEY_CONNECT 218
322 #define KEY_FINANCE 219
323 #define KEY_SPORT 220
325 #define KEY_ALTERASE 222
326 #define KEY_CANCEL 223
327 #define KEY_BRIGHTNESSDOWN 224
328 #define KEY_BRIGHTNESSUP 225
329 #define KEY_MEDIA 226
331 #define KEY_UNKNOWN 240
333 #define BTN_MISC 0x100
345 #define BTN_MOUSE 0x110
346 #define BTN_LEFT 0x110
347 #define BTN_RIGHT 0x111
348 #define BTN_MIDDLE 0x112
349 #define BTN_SIDE 0x113
350 #define BTN_EXTRA 0x114
351 #define BTN_FORWARD 0x115
352 #define BTN_BACK 0x116
353 #define BTN_TASK 0x117
355 #define BTN_JOYSTICK 0x120
356 #define BTN_TRIGGER 0x120
357 #define BTN_THUMB 0x121
358 #define BTN_THUMB2 0x122
359 #define BTN_TOP 0x123
360 #define BTN_TOP2 0x124
361 #define BTN_PINKIE 0x125
362 #define BTN_BASE 0x126
363 #define BTN_BASE2 0x127
364 #define BTN_BASE3 0x128
365 #define BTN_BASE4 0x129
366 #define BTN_BASE5 0x12a
367 #define BTN_BASE6 0x12b
368 #define BTN_DEAD 0x12f
370 #define BTN_GAMEPAD 0x130
379 #define BTN_TL2 0x138
380 #define BTN_TR2 0x139
381 #define BTN_SELECT 0x13a
382 #define BTN_START 0x13b
383 #define BTN_MODE 0x13c
384 #define BTN_THUMBL 0x13d
385 #define BTN_THUMBR 0x13e
387 #define BTN_DIGI 0x140
388 #define BTN_TOOL_PEN 0x140
389 #define BTN_TOOL_RUBBER 0x141
390 #define BTN_TOOL_BRUSH 0x142
391 #define BTN_TOOL_PENCIL 0x143
392 #define BTN_TOOL_AIRBRUSH 0x144
393 #define BTN_TOOL_FINGER 0x145
394 #define BTN_TOOL_MOUSE 0x146
395 #define BTN_TOOL_LENS 0x147
396 #define BTN_TOUCH 0x14a
397 #define BTN_STYLUS 0x14b
398 #define BTN_STYLUS2 0x14c
399 #define BTN_TOOL_DOUBLETAP 0x14d
400 #define BTN_TOOL_TRIPLETAP 0x14e
402 #define BTN_WHEEL 0x150
403 #define BTN_GEAR_DOWN 0x150
404 #define BTN_GEAR_UP 0x151
407 #define KEY_SELECT 0x161
408 #define KEY_GOTO 0x162
409 #define KEY_CLEAR 0x163
410 #define KEY_POWER2 0x164
411 #define KEY_OPTION 0x165
412 #define KEY_INFO 0x166
413 #define KEY_TIME 0x167
414 #define KEY_VENDOR 0x168
415 #define KEY_ARCHIVE 0x169
416 #define KEY_PROGRAM 0x16a
417 #define KEY_CHANNEL 0x16b
418 #define KEY_FAVORITES 0x16c
419 #define KEY_EPG 0x16d
420 #define KEY_PVR 0x16e
421 #define KEY_MHP 0x16f
422 #define KEY_LANGUAGE 0x170
423 #define KEY_TITLE 0x171
424 #define KEY_SUBTITLE 0x172
425 #define KEY_ANGLE 0x173
426 #define KEY_ZOOM 0x174
427 #define KEY_MODE 0x175
428 #define KEY_KEYBOARD 0x176
429 #define KEY_SCREEN 0x177
432 #define KEY_TV2 0x17a
433 #define KEY_VCR 0x17b
434 #define KEY_VCR2 0x17c
435 #define KEY_SAT 0x17d
436 #define KEY_SAT2 0x17e
438 #define KEY_TAPE 0x180
439 #define KEY_RADIO 0x181
440 #define KEY_TUNER 0x182
441 #define KEY_PLAYER 0x183
442 #define KEY_TEXT 0x184
443 #define KEY_DVD 0x185
444 #define KEY_AUX 0x186
445 #define KEY_MP3 0x187
446 #define KEY_AUDIO 0x188
447 #define KEY_VIDEO 0x189
448 #define KEY_DIRECTORY 0x18a
449 #define KEY_LIST 0x18b
450 #define KEY_MEMO 0x18c
451 #define KEY_CALENDAR 0x18d
452 #define KEY_RED 0x18e
453 #define KEY_GREEN 0x18f
454 #define KEY_YELLOW 0x190
455 #define KEY_BLUE 0x191
456 #define KEY_CHANNELUP 0x192
457 #define KEY_CHANNELDOWN 0x193
458 #define KEY_FIRST 0x194
459 #define KEY_LAST 0x195
461 #define KEY_NEXT 0x197
462 #define KEY_RESTART 0x198
463 #define KEY_SLOW 0x199
464 #define KEY_SHUFFLE 0x19a
465 #define KEY_BREAK 0x19b
466 #define KEY_PREVIOUS 0x19c
467 #define KEY_DIGITS 0x19d
468 #define KEY_TEEN 0x19e
469 #define KEY_TWEN 0x19f
471 #define KEY_DEL_EOL 0x1c0
472 #define KEY_DEL_EOS 0x1c1
473 #define KEY_INS_LINE 0x1c2
474 #define KEY_DEL_LINE 0x1c3
476 #define KEY_MAX 0x1ff
485 #define REL_HWHEEL 0x06
486 #define REL_DIAL 0x07
487 #define REL_WHEEL 0x08
488 #define REL_MISC 0x09
501 #define ABS_THROTTLE 0x06
502 #define ABS_RUDDER 0x07
503 #define ABS_WHEEL 0x08
505 #define ABS_BRAKE 0x0a
506 #define ABS_HAT0X 0x10
507 #define ABS_HAT0Y 0x11
508 #define ABS_HAT1X 0x12
509 #define ABS_HAT1Y 0x13
510 #define ABS_HAT2X 0x14
511 #define ABS_HAT2Y 0x15
512 #define ABS_HAT3X 0x16
513 #define ABS_HAT3Y 0x17
514 #define ABS_PRESSURE 0x18
515 #define ABS_DISTANCE 0x19
516 #define ABS_TILT_X 0x1a
517 #define ABS_TILT_Y 0x1b
518 #define ABS_TOOL_WIDTH 0x1c
519 #define ABS_VOLUME 0x20
520 #define ABS_MISC 0x28
527 #define MSC_SERIAL 0x00
528 #define MSC_PULSELED 0x01
529 #define MSC_GESTURE 0x02
536 #define LED_NUML 0x00
537 #define LED_CAPSL 0x01
538 #define LED_SCROLLL 0x02
539 #define LED_COMPOSE 0x03
540 #define LED_KANA 0x04
541 #define LED_SLEEP 0x05
542 #define LED_SUSPEND 0x06
543 #define LED_MUTE 0x07
544 #define LED_MISC 0x08
551 #define REP_DELAY 0x00
552 #define REP_PERIOD 0x01
559 #define SND_CLICK 0x00
560 #define SND_BELL 0x01
561 #define SND_TONE 0x02
574 #define BUS_ISAPNP 0x02
577 #define BUS_BLUETOOTH 0x05
580 #define BUS_I8042 0x11
581 #define BUS_XTKBD 0x12
582 #define BUS_RS232 0x13
583 #define BUS_GAMEPORT 0x14
584 #define BUS_PARPORT 0x15
585 #define BUS_AMIGA 0x16
588 #define BUS_HOST 0x19
591 * Values describing the status of an effect
593 #define FF_STATUS_STOPPED 0x00
594 #define FF_STATUS_PLAYING 0x01
595 #define FF_STATUS_MAX 0x01
598 * Structures used in ioctls to upload effects to a device
599 * The first structures are not passed directly by using ioctls.
600 * They are sub-structures of the actually sent structure (called ff_effect)
604 __u16 length; /* Duration of an effect in ms. All other times are also expressed in ms */
605 __u16 delay; /* Time to wait before to start playing an effect */
609 __u16 button; /* Number of button triggering an effect */
610 __u16 interval; /* Time to wait before an effect can be re-triggered (ms) */
614 __u16 attack_length; /* Duration of attack (ms) */
615 __u16 attack_level; /* Level at beginning of attack */
616 __u16 fade_length; /* Duration of fade (ms) */
617 __u16 fade_level; /* Level at end of fade */
621 struct ff_constant_effect {
622 __s16 level; /* Strength of effect. Negative values are OK */
623 struct ff_envelope envelope;
627 struct ff_ramp_effect {
630 struct ff_envelope envelope;
633 /* FF_SPRING of FF_FRICTION */
634 struct ff_condition_effect {
635 __u16 right_saturation; /* Max level when joystick is on the right */
636 __u16 left_saturation; /* Max level when joystick in on the left */
638 __s16 right_coeff; /* Indicates how fast the force grows when the
639 joystick moves to the right */
640 __s16 left_coeff; /* Same for left side */
642 __u16 deadband; /* Size of area where no force is produced */
643 __s16 center; /* Position of dead zone */
648 struct ff_periodic_effect {
649 __u16 waveform; /* Kind of wave (sine, square...) */
650 __u16 period; /* in ms */
651 __s16 magnitude; /* Peak value */
652 __s16 offset; /* Mean value of wave (roughly) */
653 __u16 phase; /* 'Horizontal' shift */
655 struct ff_envelope envelope;
657 /* Only used if waveform == FF_CUSTOM */
658 __u32 custom_len; /* Number of samples */
659 __s16 *custom_data; /* Buffer of samples */
660 /* Note: the data pointed by custom_data is copied by the driver. You can
661 * therefore dispose of the memory after the upload/update */
665 /* Some rumble pads have two motors of different weight.
666 strong_magnitude represents the magnitude of the vibration generated
669 struct ff_rumble_effect {
670 __u16 strong_magnitude; /* Magnitude of the heavy motor */
671 __u16 weak_magnitude; /* Magnitude of the light one */
675 * Structure sent through ioctl from the application to the driver
679 /* Following field denotes the unique id assigned to an effect.
680 * If user sets if to -1, a new effect is created, and its id is returned in the same field
681 * Else, the user sets it to the effect id it wants to update.
685 __u16 direction; /* Direction. 0 deg -> 0x0000 (down)
686 90 deg -> 0x4000 (left)
687 180 deg -> 0x8000 (up)
688 270 deg -> 0xC000 (right)
691 struct ff_trigger trigger;
692 struct ff_replay replay;
695 struct ff_constant_effect constant;
696 struct ff_ramp_effect ramp;
697 struct ff_periodic_effect periodic;
698 struct ff_condition_effect condition[2]; /* One for each axis */
699 struct ff_rumble_effect rumble;
704 * Force feedback effect types
707 #define FF_RUMBLE 0x50
708 #define FF_PERIODIC 0x51
709 #define FF_CONSTANT 0x52
710 #define FF_SPRING 0x53
711 #define FF_FRICTION 0x54
712 #define FF_DAMPER 0x55
713 #define FF_INERTIA 0x56
717 * Force feedback periodic effect types
720 #define FF_SQUARE 0x58
721 #define FF_TRIANGLE 0x59
723 #define FF_SAW_UP 0x5b
724 #define FF_SAW_DOWN 0x5c
725 #define FF_CUSTOM 0x5d
728 * Set ff device properties
732 #define FF_AUTOCENTER 0x61
739 * In-kernel definitions.
742 #include <linux/fs.h>
743 #include <linux/timer.h>
745 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
746 #define BIT(x) (1UL<<((x)%BITS_PER_LONG))
747 #define LONG(x) ((x)/BITS_PER_LONG)
749 #define INPUT_KEYCODE(dev, scancode) ((dev->keycodesize == 1) ? ((u8*)dev->keycode)[scancode] : \
750 ((dev->keycodesize == 2) ? ((u16*)dev->keycode)[scancode] : (((u32*)dev->keycode)[scancode])))
752 #define init_input_dev(dev) do { INIT_LIST_HEAD(&((dev)->h_list)); INIT_LIST_HEAD(&((dev)->node)); } while (0)
754 #define SET_INPUT_KEYCODE(dev, scancode, val) \
756 switch (dev->keycodesize) { \
758 u8 *k = (u8 *)dev->keycode; \
759 __old = k[scancode]; \
764 u16 *k = (u16 *)dev->keycode; \
765 __old = k[scancode]; \
770 u32 *k = (u32 *)dev->keycode; \
771 __old = k[scancode]; \
787 unsigned long evbit[NBITS(EV_MAX)];
788 unsigned long keybit[NBITS(KEY_MAX)];
789 unsigned long relbit[NBITS(REL_MAX)];
790 unsigned long absbit[NBITS(ABS_MAX)];
791 unsigned long mscbit[NBITS(MSC_MAX)];
792 unsigned long ledbit[NBITS(LED_MAX)];
793 unsigned long sndbit[NBITS(SND_MAX)];
794 unsigned long ffbit[NBITS(FF_MAX)];
797 unsigned int keycodemax;
798 unsigned int keycodesize;
801 unsigned int repeat_key;
802 struct timer_list timer;
804 struct pm_dev *pm_dev;
805 struct pt_regs *regs;
810 int abs[ABS_MAX + 1];
811 int rep[REP_MAX + 1];
813 unsigned long key[NBITS(KEY_MAX)];
814 unsigned long led[NBITS(LED_MAX)];
815 unsigned long snd[NBITS(SND_MAX)];
817 int absmax[ABS_MAX + 1];
818 int absmin[ABS_MAX + 1];
819 int absfuzz[ABS_MAX + 1];
820 int absflat[ABS_MAX + 1];
822 int (*open)(struct input_dev *dev);
823 void (*close)(struct input_dev *dev);
824 int (*accept)(struct input_dev *dev, struct file *file);
825 int (*flush)(struct input_dev *dev, struct file *file);
826 int (*event)(struct input_dev *dev, unsigned int type, unsigned int code, int value);
827 int (*upload_effect)(struct input_dev *dev, struct ff_effect *effect);
828 int (*erase_effect)(struct input_dev *dev, int effect_id);
830 struct input_handle *grab;
833 struct list_head h_list;
834 struct list_head node;
838 * Structure for hotplug & device<->driver matching.
841 #define INPUT_DEVICE_ID_MATCH_BUS 1
842 #define INPUT_DEVICE_ID_MATCH_VENDOR 2
843 #define INPUT_DEVICE_ID_MATCH_PRODUCT 4
844 #define INPUT_DEVICE_ID_MATCH_VERSION 8
846 #define INPUT_DEVICE_ID_MATCH_EVBIT 0x010
847 #define INPUT_DEVICE_ID_MATCH_KEYBIT 0x020
848 #define INPUT_DEVICE_ID_MATCH_RELBIT 0x040
849 #define INPUT_DEVICE_ID_MATCH_ABSBIT 0x080
850 #define INPUT_DEVICE_ID_MATCH_MSCIT 0x100
851 #define INPUT_DEVICE_ID_MATCH_LEDBIT 0x200
852 #define INPUT_DEVICE_ID_MATCH_SNDBIT 0x400
853 #define INPUT_DEVICE_ID_MATCH_FFBIT 0x800
855 #define INPUT_DEVICE_ID_MATCH_DEVICE\
856 (INPUT_DEVICE_ID_MATCH_BUS | INPUT_DEVICE_ID_MATCH_VENDOR | INPUT_DEVICE_ID_MATCH_PRODUCT)
857 #define INPUT_DEVICE_ID_MATCH_DEVICE_AND_VERSION\
858 (INPUT_DEVICE_ID_MATCH_DEVICE | INPUT_DEVICE_ID_MATCH_VERSION)
860 struct input_device_id {
866 unsigned long evbit[NBITS(EV_MAX)];
867 unsigned long keybit[NBITS(KEY_MAX)];
868 unsigned long relbit[NBITS(REL_MAX)];
869 unsigned long absbit[NBITS(ABS_MAX)];
870 unsigned long mscbit[NBITS(MSC_MAX)];
871 unsigned long ledbit[NBITS(LED_MAX)];
872 unsigned long sndbit[NBITS(SND_MAX)];
873 unsigned long ffbit[NBITS(FF_MAX)];
875 unsigned long driver_info;
880 struct input_handler {
884 void (*event)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
885 struct input_handle* (*connect)(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id);
886 void (*disconnect)(struct input_handle *handle);
888 struct file_operations *fops;
892 struct input_device_id *id_table;
893 struct input_device_id *blacklist;
895 struct list_head h_list;
896 struct list_head node;
899 struct input_handle {
906 struct input_dev *dev;
907 struct input_handler *handler;
909 struct list_head d_node;
910 struct list_head h_node;
913 #define to_dev(n) container_of(n,struct input_dev,node)
914 #define to_handler(n) container_of(n,struct input_handler,node);
915 #define to_handle(n) container_of(n,struct input_handle,d_node)
916 #define to_handle_h(n) container_of(n,struct input_handle,h_node)
918 void input_register_device(struct input_dev *);
919 void input_unregister_device(struct input_dev *);
921 void input_register_handler(struct input_handler *);
922 void input_unregister_handler(struct input_handler *);
924 int input_grab_device(struct input_handle *);
925 void input_release_device(struct input_handle *);
927 int input_open_device(struct input_handle *);
928 void input_close_device(struct input_handle *);
930 int input_accept_process(struct input_handle *handle, struct file *file);
931 int input_flush_device(struct input_handle* handle, struct file* file);
933 void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
935 #define input_report_key(a,b,c) input_event(a, EV_KEY, b, !!(c))
936 #define input_report_rel(a,b,c) input_event(a, EV_REL, b, c)
937 #define input_report_abs(a,b,c) input_event(a, EV_ABS, b, c)
938 #define input_report_ff(a,b,c) input_event(a, EV_FF, b, c)
939 #define input_report_ff_status(a,b,c) input_event(a, EV_FF_STATUS, b, c)
941 #define input_regs(a,b) do { (a)->regs = (b); } while (0)
942 #define input_sync(a) do { input_event(a, EV_SYN, SYN_REPORT, 0); (a)->regs = NULL; } while (0)
944 extern struct class_simple *input_class;