static int uinput_request_send(struct uinput_device *udev,
struct uinput_request *request)
{
int retval;
retval = mutex_lock_interruptible(&udev->mutex);
if (retval)
return retval;
if (udev->state != UIST_CREATED) {
retval = -ENODEV;
goto out;
}
init_completion(&request->done);
/*
* Tell our userspace application about this new request
* by queueing an input event.
*/
uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id);
out:
mutex_unlock(&udev->mutex);
return retval;
}
static int uinput_request_submit(struct input_dev *dev, struct uinput_request *request)
{
/* Tell our userspace app about this new request by queueing an input event */
uinput_dev_event(dev, EV_UINPUT, request->code, request->id);
/* Wait for the request to complete */
wait_for_completion(&request->done);
return request->retval;
}
static int uinput_request_submit(struct uinput_device *udev, struct uinput_request *request)
{
int retval;
retval = uinput_request_reserve_slot(udev, request);
if (retval)
return retval;
retval = mutex_lock_interruptible(&udev->mutex);
if (retval)
return retval;
if (udev->state != UIST_CREATED) {
retval = -ENODEV;
goto out;
}
/* Tell our userspace app about this new request by queueing an input event */
uinput_dev_event(udev->dev, EV_UINPUT, request->code, request->id);
out:
mutex_unlock(&udev->mutex);
return retval;
}
static int uinput_dev_playback(struct input_dev *dev, int effect_id, int value)
{
return uinput_dev_event(dev, EV_FF, effect_id, value);
}
static void uinput_dev_set_autocenter(struct input_dev *dev, u16 magnitude)
{
uinput_dev_event(dev, EV_FF, FF_AUTOCENTER, magnitude);
}
static void uinput_dev_set_gain(struct input_dev *dev, u16 gain)
{
uinput_dev_event(dev, EV_FF, FF_GAIN, gain);
}
