Re: [PATCH 2/3] hid: 3m: Convert to MT slots

[Henrik Rydberg <rydberg@euromail.se>]

On 09/20/2010 10:23 PM, Stéphane Chatty wrote:

> 
> Le 20 sept. 10 à 22:04, Henrik Rydberg a écrit :
>>>
>>> What about this:
>>> +            value = clamp_val(value, 0, MAX_SLOTS - 1);
>>>              if (md->valid) {
>>>                  md->curid = value;
>>>                  md->f[value].touch = md->touch;
>>>
>>> If you had tracking IDs 59, 60 and 61 in the same frame, this would not work
>>> properly would it?
>>
>>
>> That is the slot id being set. The microtouch controller is also using slots
>> internally.
>>
> 
> Oh, right. Once again back to your definition of tracking ID that is not so
> intuitive to me :-) In the end we might end up dealing with three IDs: the
> device's tracking ID, the slot ID, and the Linux tracking ID. Here, the first
> and the second are the same but will they always be? I remember when Stantum
> used to provide us with 16 bit "device tracking IDs"...
> 
> Anyway, I have no more problem with this constant. Just with the vocabulary :-)


In the HID protocol, it is called ContactID... So, Stéphane, are we close to
acking this patch now? :-)

Cheers,
Henrik
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