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List:       linux-input
Subject:    Re: [PATCH v2 1/4] Add ff-memless-next driver
From:       Anssi Hannula <anssi.hannula () iki ! fi>
Date:       2014-02-24 2:11:04
Message-ID: 530AAA38.3090700 () iki ! fi
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24.02.2014 03:54, Michal Malư kirjoitti:
> I forgot to comment on this:
>> Stopped effects should still be able to be updated.
> Fair enough. I could not find a definitive answer to what is expected behavior 
> in this case. As far as I can tell, there are following cases:
> - Effects with no duration and delay: they shall be updated right away.
> - Effects with delay: updated parameters shall be sent to the device at the 
> correct time.
> - "Expired" effects with finite duration - ??? I assumed that effects with 
> finite duration that have already finished playing cannot be updated because 
> it does not seem to make much sense to do so.

"Expired" effects can always be played back again later - if that
happens, the updated parameters will be in effect.

> Shall such an effect be 
> restarted when it is updated?

No.

> Is there any guideline I should stick to I am 
> not aware of?

Only "3.7 Dynamic update of an effect" of input/ff.txt.

-- 
Anssi Hannula
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