Input: introduce input_inject_event() function
Create input_inject_event() function which is to be used by input handlers as opposed to input_event() which is reserved for drivers implementing input devices. The difference is that if device is "grabbed" by some process input_inject_event() will ignore events unless sent from the handle that is currently owns the device. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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c7e8dc6ee6
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0e739d2876
@ -223,13 +223,13 @@ static void kd_nosound(unsigned long ignored)
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{
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{
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struct list_head *node;
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struct list_head *node;
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list_for_each(node,&kbd_handler.h_list) {
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list_for_each(node, &kbd_handler.h_list) {
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struct input_handle *handle = to_handle_h(node);
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struct input_handle *handle = to_handle_h(node);
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if (test_bit(EV_SND, handle->dev->evbit)) {
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if (test_bit(EV_SND, handle->dev->evbit)) {
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if (test_bit(SND_TONE, handle->dev->sndbit))
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if (test_bit(SND_TONE, handle->dev->sndbit))
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input_event(handle->dev, EV_SND, SND_TONE, 0);
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input_inject_event(handle, EV_SND, SND_TONE, 0);
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if (test_bit(SND_BELL, handle->dev->sndbit))
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if (test_bit(SND_BELL, handle->dev->sndbit))
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input_event(handle->dev, EV_SND, SND_BELL, 0);
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input_inject_event(handle, EV_SND, SND_BELL, 0);
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}
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}
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}
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}
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}
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}
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@ -247,11 +247,11 @@ void kd_mksound(unsigned int hz, unsigned int ticks)
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struct input_handle *handle = to_handle_h(node);
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struct input_handle *handle = to_handle_h(node);
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if (test_bit(EV_SND, handle->dev->evbit)) {
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if (test_bit(EV_SND, handle->dev->evbit)) {
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if (test_bit(SND_TONE, handle->dev->sndbit)) {
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if (test_bit(SND_TONE, handle->dev->sndbit)) {
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input_event(handle->dev, EV_SND, SND_TONE, hz);
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input_inject_event(handle, EV_SND, SND_TONE, hz);
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break;
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break;
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}
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}
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if (test_bit(SND_BELL, handle->dev->sndbit)) {
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if (test_bit(SND_BELL, handle->dev->sndbit)) {
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input_event(handle->dev, EV_SND, SND_BELL, 1);
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input_inject_event(handle, EV_SND, SND_BELL, 1);
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break;
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break;
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}
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}
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}
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}
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@ -272,15 +272,15 @@ int kbd_rate(struct kbd_repeat *rep)
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unsigned int d = 0;
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unsigned int d = 0;
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unsigned int p = 0;
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unsigned int p = 0;
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list_for_each(node,&kbd_handler.h_list) {
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list_for_each(node, &kbd_handler.h_list) {
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struct input_handle *handle = to_handle_h(node);
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struct input_handle *handle = to_handle_h(node);
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struct input_dev *dev = handle->dev;
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struct input_dev *dev = handle->dev;
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if (test_bit(EV_REP, dev->evbit)) {
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if (test_bit(EV_REP, dev->evbit)) {
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if (rep->delay > 0)
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if (rep->delay > 0)
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input_event(dev, EV_REP, REP_DELAY, rep->delay);
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input_inject_event(handle, EV_REP, REP_DELAY, rep->delay);
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if (rep->period > 0)
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if (rep->period > 0)
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input_event(dev, EV_REP, REP_PERIOD, rep->period);
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input_inject_event(handle, EV_REP, REP_PERIOD, rep->period);
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d = dev->rep[REP_DELAY];
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d = dev->rep[REP_DELAY];
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p = dev->rep[REP_PERIOD];
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p = dev->rep[REP_PERIOD];
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}
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}
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@ -988,7 +988,7 @@ static inline unsigned char getleds(void)
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* interrupt routines for this thing allows us to easily mask
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* interrupt routines for this thing allows us to easily mask
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* this when we don't want any of the above to happen.
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* this when we don't want any of the above to happen.
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* This allows for easy and efficient race-condition prevention
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* This allows for easy and efficient race-condition prevention
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* for kbd_start => input_event(dev, EV_LED, ...) => ...
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* for kbd_start => input_inject_event(dev, EV_LED, ...) => ...
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*/
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*/
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static void kbd_bh(unsigned long dummy)
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static void kbd_bh(unsigned long dummy)
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@ -998,11 +998,11 @@ static void kbd_bh(unsigned long dummy)
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if (leds != ledstate) {
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if (leds != ledstate) {
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list_for_each(node, &kbd_handler.h_list) {
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list_for_each(node, &kbd_handler.h_list) {
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struct input_handle * handle = to_handle_h(node);
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struct input_handle *handle = to_handle_h(node);
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input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
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input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
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input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02));
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input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02));
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input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04));
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input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04));
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input_sync(handle->dev);
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input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
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}
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}
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}
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}
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@ -1310,10 +1310,10 @@ static void kbd_start(struct input_handle *handle)
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tasklet_disable(&keyboard_tasklet);
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tasklet_disable(&keyboard_tasklet);
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if (leds != 0xff) {
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if (leds != 0xff) {
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input_event(handle->dev, EV_LED, LED_SCROLLL, !!(leds & 0x01));
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input_inject_event(handle, EV_LED, LED_SCROLLL, !!(leds & 0x01));
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input_event(handle->dev, EV_LED, LED_NUML, !!(leds & 0x02));
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input_inject_event(handle, EV_LED, LED_NUML, !!(leds & 0x02));
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input_event(handle->dev, EV_LED, LED_CAPSL, !!(leds & 0x04));
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input_inject_event(handle, EV_LED, LED_CAPSL, !!(leds & 0x04));
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input_sync(handle->dev);
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input_inject_event(handle, EV_SYN, SYN_REPORT, 0);
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}
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}
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tasklet_enable(&keyboard_tasklet);
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tasklet_enable(&keyboard_tasklet);
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}
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}
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@ -256,7 +256,7 @@ static ssize_t evdev_write(struct file * file, const char __user * buffer, size_
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if (evdev_event_from_user(buffer + retval, &event))
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if (evdev_event_from_user(buffer + retval, &event))
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return -EFAULT;
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return -EFAULT;
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input_event(list->evdev->handle.dev, event.type, event.code, event.value);
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input_inject_event(&list->evdev->handle, event.type, event.code, event.value);
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retval += evdev_event_size();
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retval += evdev_event_size();
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}
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}
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@ -424,8 +424,8 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
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if (get_user(v, ip + 1))
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if (get_user(v, ip + 1))
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return -EFAULT;
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return -EFAULT;
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input_event(dev, EV_REP, REP_DELAY, u);
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input_inject_event(&evdev->handle, EV_REP, REP_DELAY, u);
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input_event(dev, EV_REP, REP_PERIOD, v);
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input_inject_event(&evdev->handle, EV_REP, REP_PERIOD, v);
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return 0;
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return 0;
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@ -35,6 +35,16 @@ static LIST_HEAD(input_handler_list);
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static struct input_handler *input_table[8];
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static struct input_handler *input_table[8];
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/**
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* input_event() - report new input event
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* @handle: device that generated the event
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* @type: type of the event
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* @code: event code
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* @value: value of the event
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*
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* This function should be used by drivers implementing various input devices
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* See also input_inject_event()
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*/
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void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
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void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
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{
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{
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struct input_handle *handle;
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struct input_handle *handle;
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@ -183,6 +193,23 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in
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}
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}
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EXPORT_SYMBOL(input_event);
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EXPORT_SYMBOL(input_event);
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/**
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* input_inject_event() - send input event from input handler
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* @handle: input handle to send event through
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* @type: type of the event
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* @code: event code
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* @value: value of the event
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*
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* Similar to input_event() but will ignore event if device is "grabbed" and handle
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* injecting event is not the one that owns the device.
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*/
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void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
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{
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if (!handle->dev->grab || handle->dev->grab == handle)
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input_event(handle->dev, type, code, value);
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}
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EXPORT_SYMBOL(input_inject_event);
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static void input_repeat_key(unsigned long data)
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static void input_repeat_key(unsigned long data)
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{
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{
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struct input_dev *dev = (void *) data;
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struct input_dev *dev = (void *) data;
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@ -1053,6 +1053,7 @@ void input_close_device(struct input_handle *);
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int input_flush_device(struct input_handle* handle, struct file* file);
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int input_flush_device(struct input_handle* handle, struct file* file);
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void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
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void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value);
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void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value);
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static inline void input_report_key(struct input_dev *dev, unsigned int code, int value)
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static inline void input_report_key(struct input_dev *dev, unsigned int code, int value)
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{
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{
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