multi-touch-dev team mailing list archive

[Chase Douglas <chase.douglas@xxxxxxxxxxxxx>]

On 11/09/2011 10:09 AM, Nuno Santos wrote:
> On 11/09/2011 05:27 PM, Chase Douglas wrote:
>> It should list your device, and it should be attached to the Virtual
>> Core Pointer. You can list even more properties of the device by running:
>>
>> xinput list<device number or name>
>>
>> This should tell you if it's a multitouch device.
> This is what I get from xinput list command
> 
> nsantos@NS-PC:~/workspaces/workspace-mtt/linux-kernel-driver$ xinput -list
> ⎡ Virtual core pointer id=2 [master pointer (3)]
> ⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
> ⎜ ↳ Microsoft Natural® Ergonomic Keyboard 4000 id=9 [slave pointer (2)]
> ⎜ ↳ Logitech Trackball id=10 [slave pointer (2)]
> ⎜ ↳ DISPLAX - Interactive Systems SKIN MULTITOUCH id=11 [slave pointer (2)]
> ⎣ Virtual core keyboard id=3 [master keyboard (2)]
> ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
> ↳ Power Button id=6 [slave keyboard (3)]
> ↳ Power Button id=7 [slave keyboard (3)]
> ↳ Microsoft Natural® Ergonomic Keyboard 4000 id=8 [slave keyboard (3)]
> 
> As you can see (my device is Displax - Interactive ... ) there is no 
> such reference to multitouch device, only the name which comes from 
> device strings.

Run 'xinput list 11'. This should give more details including multitouch
information if recognized.

>>  - How can I test user side multitouch input? I'm trying to see if xinput
>>  lists my device as a multitouch device. No success. I'm also trying an
>>  example from qt4-demos, finger paint which always gives me nothing. Is
>>  there any "oficial" tool for ubuntu multitouch input testing?
> 
>> The qt4 fingerpaint application is the best tool for quickly testing
>> multitouch input because it shows what the device is emitting in a
>> graphical way.
>>
>> You should also be able to use xinput test-xi2, but it might be broken
>> at the moment.
> 
> Yeah, but fingerpaint is not giving any signal of life. As I could infer 
> from questions in qt community there isnt official support for xinput 
> 2.1 yet. only a branch is capable of that and it's still not merged in 
> the tree. next thing I will do is to try that branch.

That's true, but Ubuntu ships the branch with multitouch support.

> In the mean while I found evtest and this is what it tells about my 
> device with the current settings i'm giving to it:
> 
> Input driver version is 1.0.1
> Input device ID: bus 0x3 vendor 0x226e product 0x1 version 0x100
> Input device name: "DISPLAX - Interactive Systems SKIN MULTITOUCH"
> Supported events:
> Event type 0 (Sync)
> Event type 1 (Key)
> Event code 330 (Touch)
> Event type 3 (Absolute)
> Event code 0 (X)
> Value 454
> Min 0
> Max 6300
> Event code 1 (Y)
> Value 2108
> Min 0
> Max 6300
> Event code 47 (Slot)
> Value 0
> Min 0
> Max 5
> Event code 48 (Touch Major)
> Value 0
> Min 0
> Max 255
> Event code 53 (Position X)
> Value 0
> Min 0
> Max 6300
> Event code 54 (Position Y)
> Value 0
> Min 0
> Max 6300
> Event code 57 (Tracking ID)
> Value 0
> Min 0
> Max 65535
> 
> Do you seen anything wrong in this report?

No, everything looks right here. See if xinput list 11 outputs
multitouch info. If it doesn't then there must be something wrong in
this evtest output. If it does, then there probably is some issue with
how the driver is emitting touch events.

-- Chase