My testing result and comments are inline.

Ping

On Wed, Dec 15, 2010 at 9:21 PM, Peter Hutterer
<[email protected]> wrote:
> On Wed, Dec 15, 2010 at 08:50:08PM -0800, Ping Cheng wrote:
>> I've tested the set. The ring (I4) is fine except around
>> the 0 and 71 area. The strips (I3) still emit unexpected button events
>> with single touch (without moving up or down along the strips)
>> somehow. I didn't have time to review the patches yet.
>
> can you specify this a bit? you mean just holding the finger in one
> position?

It happens not very often. But it happens when touch and leave, or
touch and hold.

> if so, that'd likely be the filtering logic that I haven't touched in this
> set.

I do not feel it is a filter issue. I see something in getWheelButton.
I think the issue for strips is related to value, stripx/y or
oldStripx/y = 0.

> need to test the I4 again, didn't notice odd behaviour around the 0-71 switch

For wheel/ring, when finger moves across 0 and 71, the direction could
be changed since the sign of value = priv->oldWheel - ds->abswheel
could be changed.

Assume we get abswheel as 34 -> 56 -> 71 -> 2 -> 18, we would get
value as: -22, -15, 69, -16. The third one changed from wheeldn to
wheelup, which is not what users would expect.

There is a compiling warning:

  CC     wcmConfig.lo
wcmConfig.c: In function ‘NewWcmPreInit’:
wcmConfig.c:515:3: warning: implicit declaration of function ‘asprintf’
wcmConfig.c:515:3: warning: nested extern declaration of ‘asprintf’

  CC     wcmValidateDevice.lo
wcmValidateDevice.c: In function ‘wcmOptionDupConvert’:
wcmValidateDevice.c:320:2: warning: implicit declaration of function ‘asprintf’
wcmValidateDevice.c:320:2: warning: nested extern declaration of ‘asprintf’

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