2 * User level driver support for input subsystem
4 * Heavily based on evdev.c by Vojtech Pavlik
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * Author: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
23 * 0.4 01/09/2014 (Benjamin Tissoires <benjamin.tissoires@redhat.com>)
24 * - add UI_GET_SYSNAME ioctl
25 * 0.3 09/04/2006 (Anssi Hannula <anssi.hannula@gmail.com>)
26 * - updated ff support for the changes in kernel interface
27 * - added MODULE_VERSION
28 * 0.2 16/10/2004 (Micah Dowty <micah@navi.cx>)
29 * - added force feedback support
32 * - first public version
34 #include <uapi/linux/uinput.h>
35 #include <linux/poll.h>
36 #include <linux/sched.h>
37 #include <linux/slab.h>
38 #include <linux/module.h>
39 #include <linux/init.h>
41 #include <linux/miscdevice.h>
42 #include <linux/overflow.h>
43 #include <linux/input/mt.h>
44 #include "../input-compat.h"
46 #define UINPUT_NAME "uinput"
47 #define UINPUT_BUFFER_SIZE 16
48 #define UINPUT_NUM_REQUESTS 16
50 enum uinput_state { UIST_NEW_DEVICE, UIST_SETUP_COMPLETE, UIST_CREATED };
52 struct uinput_request {
54 unsigned int code; /* UI_FF_UPLOAD, UI_FF_ERASE */
57 struct completion done;
60 unsigned int effect_id;
62 struct ff_effect *effect;
63 struct ff_effect *old;
68 struct uinput_device {
69 struct input_dev *dev;
71 enum uinput_state state;
72 wait_queue_head_t waitq;
76 struct input_event buff[UINPUT_BUFFER_SIZE];
77 unsigned int ff_effects_max;
79 struct uinput_request *requests[UINPUT_NUM_REQUESTS];
80 wait_queue_head_t requests_waitq;
81 spinlock_t requests_lock;
84 static int uinput_dev_event(struct input_dev *dev,
85 unsigned int type, unsigned int code, int value)
87 struct uinput_device *udev = input_get_drvdata(dev);
92 udev->buff[udev->head] = (struct input_event) {
93 .input_event_sec = ts.tv_sec,
94 .input_event_usec = ts.tv_nsec / NSEC_PER_USEC,
100 udev->head = (udev->head + 1) % UINPUT_BUFFER_SIZE;
102 wake_up_interruptible(&udev->waitq);
107 /* Atomically allocate an ID for the given request. Returns 0 on success. */
108 static bool uinput_request_alloc_id(struct uinput_device *udev,
109 struct uinput_request *request)
112 bool reserved = false;
114 spin_lock(&udev->requests_lock);
116 for (id = 0; id < UINPUT_NUM_REQUESTS; id++) {
117 if (!udev->requests[id]) {
119 udev->requests[id] = request;
125 spin_unlock(&udev->requests_lock);
129 static struct uinput_request *uinput_request_find(struct uinput_device *udev,
132 /* Find an input request, by ID. Returns NULL if the ID isn't valid. */
133 if (id >= UINPUT_NUM_REQUESTS)
136 return udev->requests[id];
139 static int uinput_request_reserve_slot(struct uinput_device *udev,
140 struct uinput_request *request)
142 /* Allocate slot. If none are available right away, wait. */
143 return wait_event_interruptible(udev->requests_waitq,
144 uinput_request_alloc_id(udev, request));
147 static void uinput_request_release_slot(struct uinput_device *udev,
150 /* Mark slot as available */
151 spin_lock(&udev->requests_lock);
152 udev->requests[id] = NULL;
153 spin_unlock(&udev->requests_lock);
155 wake_up(&udev->requests_waitq);
158 static int uinput_request_send(struct uinput_device *udev,
159 struct uinput_request *request)
163 retval = mutex_lock_interruptible(&udev->mutex);
167 if (udev->state != UIST_CREATED) {
172 init_completion(&request->done);
175 * Tell our userspace application about this new request
176 * by queueing an input event.
178 uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id);
181 mutex_unlock(&udev->mutex);
185 static int uinput_request_submit(struct uinput_device *udev,
186 struct uinput_request *request)
190 retval = uinput_request_reserve_slot(udev, request);
194 retval = uinput_request_send(udev, request);
198 if (!wait_for_completion_timeout(&request->done, 30 * HZ)) {
203 retval = request->retval;
206 uinput_request_release_slot(udev, request->id);
211 * Fail all outstanding requests so handlers don't wait for the userspace
212 * to finish processing them.
214 static void uinput_flush_requests(struct uinput_device *udev)
216 struct uinput_request *request;
219 spin_lock(&udev->requests_lock);
221 for (i = 0; i < UINPUT_NUM_REQUESTS; i++) {
222 request = udev->requests[i];
224 request->retval = -ENODEV;
225 complete(&request->done);
229 spin_unlock(&udev->requests_lock);
232 static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
234 uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
237 static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
239 uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
242 static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
244 return uinput_dev_event(dev, EV_FF, effect_id, value);
247 static int uinput_dev_upload_effect(struct input_dev *dev,
248 struct ff_effect *effect,
249 struct ff_effect *old)
251 struct uinput_device *udev = input_get_drvdata(dev);
252 struct uinput_request request;
255 * uinput driver does not currently support periodic effects with
256 * custom waveform since it does not have a way to pass buffer of
257 * samples (custom_data) to userspace. If ever there is a device
258 * supporting custom waveforms we would need to define an additional
259 * ioctl (UI_UPLOAD_SAMPLES) but for now we just bail out.
261 if (effect->type == FF_PERIODIC &&
262 effect->u.periodic.waveform == FF_CUSTOM)
265 request.code = UI_FF_UPLOAD;
266 request.u.upload.effect = effect;
267 request.u.upload.old = old;
269 return uinput_request_submit(udev, &request);
272 static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
274 struct uinput_device *udev = input_get_drvdata(dev);
275 struct uinput_request request;
277 if (!test_bit(EV_FF, dev->evbit))
280 request.code = UI_FF_ERASE;
281 request.u.effect_id = effect_id;
283 return uinput_request_submit(udev, &request);
286 static int uinput_dev_flush(struct input_dev *dev, struct file *file)
289 * If we are called with file == NULL that means we are tearing
290 * down the device, and therefore we can not handle FF erase
291 * requests: either we are handling UI_DEV_DESTROY (and holding
292 * the udev->mutex), or the file descriptor is closed and there is
293 * nobody on the other side anymore.
295 return file ? input_ff_flush(dev, file) : 0;
298 static void uinput_destroy_device(struct uinput_device *udev)
300 const char *name, *phys;
301 struct input_dev *dev = udev->dev;
302 enum uinput_state old_state = udev->state;
304 udev->state = UIST_NEW_DEVICE;
309 if (old_state == UIST_CREATED) {
310 uinput_flush_requests(udev);
311 input_unregister_device(dev);
313 input_free_device(dev);
321 static int uinput_create_device(struct uinput_device *udev)
323 struct input_dev *dev = udev->dev;
326 if (udev->state != UIST_SETUP_COMPLETE) {
327 printk(KERN_DEBUG "%s: write device info first\n", UINPUT_NAME);
331 if (test_bit(EV_ABS, dev->evbit)) {
332 input_alloc_absinfo(dev);
338 if (test_bit(ABS_MT_SLOT, dev->absbit)) {
339 nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
340 error = input_mt_init_slots(dev, nslot, 0);
343 } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
344 input_set_events_per_packet(dev, 60);
348 if (test_bit(EV_FF, dev->evbit) && !udev->ff_effects_max) {
349 printk(KERN_DEBUG "%s: ff_effects_max should be non-zero when FF_BIT is set\n",
355 if (udev->ff_effects_max) {
356 error = input_ff_create(dev, udev->ff_effects_max);
360 dev->ff->upload = uinput_dev_upload_effect;
361 dev->ff->erase = uinput_dev_erase_effect;
362 dev->ff->playback = uinput_dev_playback;
363 dev->ff->set_gain = uinput_dev_set_gain;
364 dev->ff->set_autocenter = uinput_dev_set_autocenter;
366 * The standard input_ff_flush() implementation does
367 * not quite work for uinput as we can't reasonably
368 * handle FF requests during device teardown.
370 dev->flush = uinput_dev_flush;
373 dev->event = uinput_dev_event;
375 input_set_drvdata(udev->dev, udev);
377 error = input_register_device(udev->dev);
381 udev->state = UIST_CREATED;
385 fail2: input_ff_destroy(dev);
386 fail1: uinput_destroy_device(udev);
390 static int uinput_open(struct inode *inode, struct file *file)
392 struct uinput_device *newdev;
394 newdev = kzalloc(sizeof(struct uinput_device), GFP_KERNEL);
398 mutex_init(&newdev->mutex);
399 spin_lock_init(&newdev->requests_lock);
400 init_waitqueue_head(&newdev->requests_waitq);
401 init_waitqueue_head(&newdev->waitq);
402 newdev->state = UIST_NEW_DEVICE;
404 file->private_data = newdev;
405 nonseekable_open(inode, file);
410 static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code,
411 const struct input_absinfo *abs)
418 if ((min != 0 || max != 0) && max < min) {
420 "%s: invalid abs[%02x] min:%d max:%d\n",
421 UINPUT_NAME, code, min, max);
425 if (!check_sub_overflow(max, min, &range) && abs->flat > range) {
427 "%s: abs_flat #%02x out of range: %d (min:%d/max:%d)\n",
428 UINPUT_NAME, code, abs->flat, min, max);
435 static int uinput_validate_absbits(struct input_dev *dev)
440 if (!test_bit(EV_ABS, dev->evbit))
444 * Check if absmin/absmax/absfuzz/absflat are sane.
447 for_each_set_bit(cnt, dev->absbit, ABS_CNT) {
451 error = uinput_validate_absinfo(dev, cnt, &dev->absinfo[cnt]);
459 static int uinput_dev_setup(struct uinput_device *udev,
460 struct uinput_setup __user *arg)
462 struct uinput_setup setup;
463 struct input_dev *dev;
465 if (udev->state == UIST_CREATED)
468 if (copy_from_user(&setup, arg, sizeof(setup)))
476 udev->ff_effects_max = setup.ff_effects_max;
479 dev->name = kstrndup(setup.name, UINPUT_MAX_NAME_SIZE, GFP_KERNEL);
483 udev->state = UIST_SETUP_COMPLETE;
487 static int uinput_abs_setup(struct uinput_device *udev,
488 struct uinput_setup __user *arg, size_t size)
490 struct uinput_abs_setup setup = {};
491 struct input_dev *dev;
494 if (size > sizeof(setup))
497 if (udev->state == UIST_CREATED)
500 if (copy_from_user(&setup, arg, size))
503 if (setup.code > ABS_MAX)
508 error = uinput_validate_absinfo(dev, setup.code, &setup.absinfo);
512 input_alloc_absinfo(dev);
516 set_bit(setup.code, dev->absbit);
517 dev->absinfo[setup.code] = setup.absinfo;
521 /* legacy setup via write() */
522 static int uinput_setup_device_legacy(struct uinput_device *udev,
523 const char __user *buffer, size_t count)
525 struct uinput_user_dev *user_dev;
526 struct input_dev *dev;
530 if (count != sizeof(struct uinput_user_dev))
534 udev->dev = input_allocate_device();
541 user_dev = memdup_user(buffer, sizeof(struct uinput_user_dev));
542 if (IS_ERR(user_dev))
543 return PTR_ERR(user_dev);
545 udev->ff_effects_max = user_dev->ff_effects_max;
547 /* Ensure name is filled in */
548 if (!user_dev->name[0]) {
554 dev->name = kstrndup(user_dev->name, UINPUT_MAX_NAME_SIZE,
561 dev->id.bustype = user_dev->id.bustype;
562 dev->id.vendor = user_dev->id.vendor;
563 dev->id.product = user_dev->id.product;
564 dev->id.version = user_dev->id.version;
566 for (i = 0; i < ABS_CNT; i++) {
567 input_abs_set_max(dev, i, user_dev->absmax[i]);
568 input_abs_set_min(dev, i, user_dev->absmin[i]);
569 input_abs_set_fuzz(dev, i, user_dev->absfuzz[i]);
570 input_abs_set_flat(dev, i, user_dev->absflat[i]);
573 retval = uinput_validate_absbits(dev);
577 udev->state = UIST_SETUP_COMPLETE;
585 static ssize_t uinput_inject_events(struct uinput_device *udev,
586 const char __user *buffer, size_t count)
588 struct input_event ev;
591 if (count != 0 && count < input_event_size())
594 while (bytes + input_event_size() <= count) {
596 * Note that even if some events were fetched successfully
597 * we are still going to return EFAULT instead of partial
598 * count to let userspace know that it got it's buffers
601 if (input_event_from_user(buffer + bytes, &ev))
604 input_event(udev->dev, ev.type, ev.code, ev.value);
605 bytes += input_event_size();
612 static ssize_t uinput_write(struct file *file, const char __user *buffer,
613 size_t count, loff_t *ppos)
615 struct uinput_device *udev = file->private_data;
621 retval = mutex_lock_interruptible(&udev->mutex);
625 retval = udev->state == UIST_CREATED ?
626 uinput_inject_events(udev, buffer, count) :
627 uinput_setup_device_legacy(udev, buffer, count);
629 mutex_unlock(&udev->mutex);
634 static bool uinput_fetch_next_event(struct uinput_device *udev,
635 struct input_event *event)
639 spin_lock_irq(&udev->dev->event_lock);
641 have_event = udev->head != udev->tail;
643 *event = udev->buff[udev->tail];
644 udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE;
647 spin_unlock_irq(&udev->dev->event_lock);
652 static ssize_t uinput_events_to_user(struct uinput_device *udev,
653 char __user *buffer, size_t count)
655 struct input_event event;
658 while (read + input_event_size() <= count &&
659 uinput_fetch_next_event(udev, &event)) {
661 if (input_event_to_user(buffer + read, &event))
664 read += input_event_size();
670 static ssize_t uinput_read(struct file *file, char __user *buffer,
671 size_t count, loff_t *ppos)
673 struct uinput_device *udev = file->private_data;
676 if (count != 0 && count < input_event_size())
680 retval = mutex_lock_interruptible(&udev->mutex);
684 if (udev->state != UIST_CREATED)
686 else if (udev->head == udev->tail &&
687 (file->f_flags & O_NONBLOCK))
690 retval = uinput_events_to_user(udev, buffer, count);
692 mutex_unlock(&udev->mutex);
694 if (retval || count == 0)
697 if (!(file->f_flags & O_NONBLOCK))
698 retval = wait_event_interruptible(udev->waitq,
699 udev->head != udev->tail ||
700 udev->state != UIST_CREATED);
701 } while (retval == 0);
706 static __poll_t uinput_poll(struct file *file, poll_table *wait)
708 struct uinput_device *udev = file->private_data;
710 poll_wait(file, &udev->waitq, wait);
712 if (udev->head != udev->tail)
713 return EPOLLIN | EPOLLRDNORM;
718 static int uinput_release(struct inode *inode, struct file *file)
720 struct uinput_device *udev = file->private_data;
722 uinput_destroy_device(udev);
729 struct uinput_ff_upload_compat {
732 struct ff_effect_compat effect;
733 struct ff_effect_compat old;
736 static int uinput_ff_upload_to_user(char __user *buffer,
737 const struct uinput_ff_upload *ff_up)
739 if (in_compat_syscall()) {
740 struct uinput_ff_upload_compat ff_up_compat;
742 ff_up_compat.request_id = ff_up->request_id;
743 ff_up_compat.retval = ff_up->retval;
745 * It so happens that the pointer that gives us the trouble
746 * is the last field in the structure. Since we don't support
747 * custom waveforms in uinput anyway we can just copy the whole
748 * thing (to the compat size) and ignore the pointer.
750 memcpy(&ff_up_compat.effect, &ff_up->effect,
751 sizeof(struct ff_effect_compat));
752 memcpy(&ff_up_compat.old, &ff_up->old,
753 sizeof(struct ff_effect_compat));
755 if (copy_to_user(buffer, &ff_up_compat,
756 sizeof(struct uinput_ff_upload_compat)))
759 if (copy_to_user(buffer, ff_up,
760 sizeof(struct uinput_ff_upload)))
767 static int uinput_ff_upload_from_user(const char __user *buffer,
768 struct uinput_ff_upload *ff_up)
770 if (in_compat_syscall()) {
771 struct uinput_ff_upload_compat ff_up_compat;
773 if (copy_from_user(&ff_up_compat, buffer,
774 sizeof(struct uinput_ff_upload_compat)))
777 ff_up->request_id = ff_up_compat.request_id;
778 ff_up->retval = ff_up_compat.retval;
779 memcpy(&ff_up->effect, &ff_up_compat.effect,
780 sizeof(struct ff_effect_compat));
781 memcpy(&ff_up->old, &ff_up_compat.old,
782 sizeof(struct ff_effect_compat));
785 if (copy_from_user(ff_up, buffer,
786 sizeof(struct uinput_ff_upload)))
795 static int uinput_ff_upload_to_user(char __user *buffer,
796 const struct uinput_ff_upload *ff_up)
798 if (copy_to_user(buffer, ff_up, sizeof(struct uinput_ff_upload)))
804 static int uinput_ff_upload_from_user(const char __user *buffer,
805 struct uinput_ff_upload *ff_up)
807 if (copy_from_user(ff_up, buffer, sizeof(struct uinput_ff_upload)))
815 #define uinput_set_bit(_arg, _bit, _max) \
818 if (udev->state == UIST_CREATED) \
820 else if ((_arg) > (_max)) \
822 else set_bit((_arg), udev->dev->_bit); \
826 static int uinput_str_to_user(void __user *dest, const char *str,
829 char __user *p = dest;
838 len = strlen(str) + 1;
842 ret = copy_to_user(p, str, len);
846 /* force terminating '\0' */
847 ret = put_user(0, p + len - 1);
848 return ret ? -EFAULT : len;
851 static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
852 unsigned long arg, void __user *p)
855 struct uinput_device *udev = file->private_data;
856 struct uinput_ff_upload ff_up;
857 struct uinput_ff_erase ff_erase;
858 struct uinput_request *req;
863 retval = mutex_lock_interruptible(&udev->mutex);
868 udev->dev = input_allocate_device();
877 if (put_user(UINPUT_VERSION, (unsigned int __user *)p))
882 retval = uinput_create_device(udev);
886 uinput_destroy_device(udev);
890 retval = uinput_dev_setup(udev, p);
893 /* UI_ABS_SETUP is handled in the variable size ioctls */
896 retval = uinput_set_bit(arg, evbit, EV_MAX);
900 retval = uinput_set_bit(arg, keybit, KEY_MAX);
904 retval = uinput_set_bit(arg, relbit, REL_MAX);
908 retval = uinput_set_bit(arg, absbit, ABS_MAX);
912 retval = uinput_set_bit(arg, mscbit, MSC_MAX);
916 retval = uinput_set_bit(arg, ledbit, LED_MAX);
920 retval = uinput_set_bit(arg, sndbit, SND_MAX);
924 retval = uinput_set_bit(arg, ffbit, FF_MAX);
928 retval = uinput_set_bit(arg, swbit, SW_MAX);
932 retval = uinput_set_bit(arg, propbit, INPUT_PROP_MAX);
936 if (udev->state == UIST_CREATED) {
941 phys = strndup_user(p, 1024);
943 retval = PTR_ERR(phys);
947 kfree(udev->dev->phys);
948 udev->dev->phys = phys;
951 case UI_BEGIN_FF_UPLOAD:
952 retval = uinput_ff_upload_from_user(p, &ff_up);
956 req = uinput_request_find(udev, ff_up.request_id);
957 if (!req || req->code != UI_FF_UPLOAD ||
958 !req->u.upload.effect) {
964 ff_up.effect = *req->u.upload.effect;
965 if (req->u.upload.old)
966 ff_up.old = *req->u.upload.old;
968 memset(&ff_up.old, 0, sizeof(struct ff_effect));
970 retval = uinput_ff_upload_to_user(p, &ff_up);
973 case UI_BEGIN_FF_ERASE:
974 if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
979 req = uinput_request_find(udev, ff_erase.request_id);
980 if (!req || req->code != UI_FF_ERASE) {
986 ff_erase.effect_id = req->u.effect_id;
987 if (copy_to_user(p, &ff_erase, sizeof(ff_erase))) {
994 case UI_END_FF_UPLOAD:
995 retval = uinput_ff_upload_from_user(p, &ff_up);
999 req = uinput_request_find(udev, ff_up.request_id);
1000 if (!req || req->code != UI_FF_UPLOAD ||
1001 !req->u.upload.effect) {
1006 req->retval = ff_up.retval;
1007 complete(&req->done);
1010 case UI_END_FF_ERASE:
1011 if (copy_from_user(&ff_erase, p, sizeof(ff_erase))) {
1016 req = uinput_request_find(udev, ff_erase.request_id);
1017 if (!req || req->code != UI_FF_ERASE) {
1022 req->retval = ff_erase.retval;
1023 complete(&req->done);
1027 size = _IOC_SIZE(cmd);
1029 /* Now check variable-length commands */
1030 switch (cmd & ~IOCSIZE_MASK) {
1031 case UI_GET_SYSNAME(0):
1032 if (udev->state != UIST_CREATED) {
1036 name = dev_name(&udev->dev->dev);
1037 retval = uinput_str_to_user(p, name, size);
1040 case UI_ABS_SETUP & ~IOCSIZE_MASK:
1041 retval = uinput_abs_setup(udev, p, size);
1047 mutex_unlock(&udev->mutex);
1051 static long uinput_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
1053 return uinput_ioctl_handler(file, cmd, arg, (void __user *)arg);
1056 #ifdef CONFIG_COMPAT
1059 * These IOCTLs change their size and thus their numbers between
1062 #define UI_SET_PHYS_COMPAT \
1063 _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
1064 #define UI_BEGIN_FF_UPLOAD_COMPAT \
1065 _IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload_compat)
1066 #define UI_END_FF_UPLOAD_COMPAT \
1067 _IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload_compat)
1069 static long uinput_compat_ioctl(struct file *file,
1070 unsigned int cmd, unsigned long arg)
1073 case UI_SET_PHYS_COMPAT:
1076 case UI_BEGIN_FF_UPLOAD_COMPAT:
1077 cmd = UI_BEGIN_FF_UPLOAD;
1079 case UI_END_FF_UPLOAD_COMPAT:
1080 cmd = UI_END_FF_UPLOAD;
1084 return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
1088 static const struct file_operations uinput_fops = {
1089 .owner = THIS_MODULE,
1090 .open = uinput_open,
1091 .release = uinput_release,
1092 .read = uinput_read,
1093 .write = uinput_write,
1094 .poll = uinput_poll,
1095 .unlocked_ioctl = uinput_ioctl,
1096 #ifdef CONFIG_COMPAT
1097 .compat_ioctl = uinput_compat_ioctl,
1099 .llseek = no_llseek,
1102 static struct miscdevice uinput_misc = {
1103 .fops = &uinput_fops,
1104 .minor = UINPUT_MINOR,
1105 .name = UINPUT_NAME,
1107 module_misc_device(uinput_misc);
1109 MODULE_ALIAS_MISCDEV(UINPUT_MINOR);
1110 MODULE_ALIAS("devname:" UINPUT_NAME);
1112 MODULE_AUTHOR("Aristeu Sergio Rozanski Filho");
1113 MODULE_DESCRIPTION("User level driver support for input subsystem");
1114 MODULE_LICENSE("GPL");