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| author | Anssi Hannula <anssi.hannula@gmail.com> | 2006-07-19 01:40:22 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dtor@insightbb.com> | 2006-07-19 01:40:22 -0400 |
| commit | 509ca1a9383601fdc5612d3d3ba5b981f6eb6c8b (patch) | |
| tree | 4d7b63c2b108510c11a89dc0ea45efe788fed779 /drivers/input/input.c | |
| parent | 806d41b756fecc1b13584e2b806b76d8934b1679 (diff) | |
| download | op-kernel-dev-509ca1a9383601fdc5612d3d3ba5b981f6eb6c8b.zip op-kernel-dev-509ca1a9383601fdc5612d3d3ba5b981f6eb6c8b.tar.gz | |
Input: implement new force feedback interface
Implement a new force feedback interface, in which all non-driver-specific
operations are separated to a common module. This includes handling effect
type validations, locking, etc.
The effects are now file descriptor specific instead of the previous strange
half-process half-fd specific behaviour. The effect memory of devices is not
emptied if the root user opens and closes the device while another user is
using effects. This is a minor change and most likely no force feedback
aware programs are affected by this negatively.
Otherwise the userspace interface is left unaltered.
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/input.c')
| -rw-r--r-- | drivers/input/input.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c index 9cb4b9a..1fc0517 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -176,6 +176,10 @@ void input_event(struct input_dev *dev, unsigned int type, unsigned int code, in break; case EV_FF: + + if (value < 0) + return; + if (dev->event) dev->event(dev, type, code, value); break; @@ -762,7 +766,9 @@ static void input_dev_release(struct class_device *class_dev) { struct input_dev *dev = to_input_dev(class_dev); + input_ff_destroy(dev); kfree(dev); + module_put(THIS_MODULE); } |
