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Input: introduce input_inject_event() function

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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 <[email protected]>
This commit is contained in:
Dmitry Torokhov 2006-07-06 00:22:43 -04:00
commit 0e739d2876
4 changed files with 49 additions and 21 deletions
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6
drivers/input/evdev.c
View file

@ -256,7 +256,7 @@ static ssize_t evdev_write(struct file * file, const char __user * buffer, size_
if (evdev_event_from_user(buffer + retval, &event))
return -EFAULT;
input_event(list->evdev->handle.dev, event.type, event.code, event.value);
input_inject_event(&list->evdev->handle, event.type, event.code, event.value);
retval += evdev_event_size();
}
@ -424,8 +424,8 @@ static long evdev_ioctl_handler(struct file *file, unsigned int cmd,
if (get_user(v, ip + 1))
return -EFAULT;
input_event(dev, EV_REP, REP_DELAY, u);
input_event(dev, EV_REP, REP_PERIOD, v);
input_inject_event(&evdev->handle, EV_REP, REP_DELAY, u);
input_inject_event(&evdev->handle, EV_REP, REP_PERIOD, v);
return 0;

27
drivers/input/input.c
View file

@ -35,6 +35,16 @@ static LIST_HEAD(input_handler_list);
static struct input_handler *input_table[8];
/**
* input_event() - report new input event
* @handle: device that generated the event
* @type: type of the event
* @code: event code
* @value: value of the event
*
* This function should be used by drivers implementing various input devices
* See also input_inject_event()
*/
void input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct input_handle *handle;
@ -183,6 +193,23 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in
}
EXPORT_SYMBOL(input_event);
/**
* input_inject_event() - send input event from input handler
* @handle: input handle to send event through
* @type: type of the event
* @code: event code
* @value: value of the event
*
* Similar to input_event() but will ignore event if device is "grabbed" and handle
* injecting event is not the one that owns the device.
*/
void input_inject_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
{
if (!handle->dev->grab || handle->dev->grab == handle)
input_event(handle->dev, type, code, value);
}
EXPORT_SYMBOL(input_inject_event);
static void input_repeat_key(unsigned long data)
{
struct input_dev *dev = (void *) data;