Re: [Linuxwacom-discuss] How to find out what is really supported on 056a:00e6

[Maximilian F. <max...@go...>]

Am 02.12.2012 00:08, schrieb Favux ...:
> On Sat, Dec 1, 2012 at 2:42 PM, Maximilian Federle
> <max...@go...> wrote:
>> Hello Favux,
>>
>> thanks for your extensive reply! Following your suggestion I edited
>> /usr/share/X11/xorg.conf.d/50-wacom.conf in Ubuntu to change the following
>> rule:
>>
>> Section "InputClass"
>>      Identifier "Wacom class"
>>      MatchProduct "Wacom|WACOM|Hanwang|PTK-540WL"
>>      MatchDevicePath "/dev/input/event*"
>>      Driver "wacom"
>> EndSection
>>
>> to
>>
>> Section "InputClass"
>>      Identifier "Wacom class"
>>      MatchProduct "Wacom|WACOM|Hanwang|PTK-540WL"
>>      MatchDevicePath "/dev/input/event*"
>>      Driver "evdev"
>> EndSection
>
> That will disable your stylus.  You just did it as a test?  For custom
> .conf files see:
> http://sourceforge.net/apps/mediawiki/linuxwacom/index.php?title=Xorg.conf.d
> http://sourceforge.net/apps/mediawiki/linuxwacom/index.php?title=USB_Tablets_with_Touch
>

Yes of course, just as a test.

>> I confirmed in Xorg.0.log that the evdev driver recognized the wacom device
>> as a touch device. However testing this config revealed (with xinput
>> test-xi2 11) that the driver reports being capable of using two fingers
>> only. With synaptics I had no luck whatsoever, it refused to load for the
>> wacom finger device.
>
> Well looking at wacom_wac.c (a wacom.ko component in the kernel
> /drivers/input/tablet) it appears the E6 has 2FGT:
> static const struct wacom_features wacom_features_0xE6 =
> 	{ "Wacom ISDv4 E6",       WACOM_PKGLEN_TPC2FG,    27760, 15694,  255,
> 	  0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
> 	  .touch_max = 2 };
>
> I don't know whether the X230t/E6 touchscreen hardware does
> theoretically support more fingers or not.
>
> Favux
>

That's pretty much what I am looking for. Naturally I'd be completely 
satisfied if I could use the the hardware to the full extent, even if 
that means "only" two finger touch. I am just irritated by the fact that 
I saw this "5 touches supported" message in xinput output. I looked for 
info on the internet regarding the x220t and x230t capabilities. One 
claim that I found quite often was, that the x230t hardware supports two 
touches independently and 5 in some sort of "semi/fake" mode.
As I haven't touched a windows OS in like 8 years I can't verify this 
fact, but I'd be interested in whether the linuxwacom project intends to 
support such "pseudo-touch" devices.

Here is a youtube video of this particular touchscreen in action with up 
to 5 finger touch: http://www.youtube.com/watch?v=EoYx9QRgVDA&feature=fvsr

So, what's next? I guess if it just isn't there in the code, I got as 
far as possible. Programming hardware drivers is not in my current 
skillset though, so I'd have to wait/hope/wish for someone to do it. (I 
can only send you german beer for motivational purposes... might lead to 
interesting side effects...) :(

Max