On Sat, Apr 26, 2014 at 05:02:00PM +0200, Michal Malý wrote:

+
+/** input_ff_create_mlnx() - Register a device within ff-memless-next and
+ *                           the kernel force feedback system
+ * @dev: Pointer to the struct input_dev associated with the device.
+ * @data: Any device-specific data that shall be passed to the callback.
+ *        function called by ff-memless-next when a force feedback action
+ *        shall be performed.
+ * @control_effect: Pointer to the callback function.
+ * @update_date: Delay in milliseconds between two recalculations of periodic
+ *               effects, ramp effects and envelopes. Note that this value will
+ *               never be lower than (CONFIG_HZ / 1000) + 1 regardless of the
+ *               value specified here. This is not a "hard" rate limiter.
+ *               Userspace still can submit effects at a rate faster than
+ *               this value.

The update rate change seems useful whether we use new ff implementation
or enhance the old one but I would prefer having a separate call to
control it.

Thanks.

-- 
Dmitry