[Linuxwacom-devel] n-trig

[Michael K. <ha...@kl...>]

Hello there,

I see now I'm not the only one to tackle n-trig problem. I have no idea 
how far you are with it, but I think I'd share my experience and maybe 
we can get it together and integrate into the project.

I've got this HP touchsmart tx2 laptop, which has the said n-trig 
thingie. The ubuntu's packaged wacom input driver for x works with 
stylus out of the box, but one should be careful not to finger the 
screen while using it, or else cursor will jump into upper-left corner.

So I've fired up `git cvsimport` and started to play from there. Here I 
am attaching the diff which is more of a proof of concept than the ready 
patch. Not only it's full of dirty hacks, but it's also introduces some 
unconditional and not conditional enough code that will most certainly 
break things for wacom tablets.

But it makes things work for me - I can use stylus, I can use touchpad 
to control everything. The missing features are, basically, multitouch 
and the separation between two input devices (finger and stylus). I 
would especially love to be able to switch touchpad off while retaining 
stylus functionality. I'm not _yet_ sure how to go about that, because 
I've never dealt with styli and touchpads before, neither I'm overly 
familiar with x input devices, so any feedback would be appreciated.

I haven't got too far (but hey, I've just bought the laptop and I have a 
daytime job too!), but will continue digging in these directions. Any 
feedback (and help too!) is appreciated. If there are interested 
parties, I can make my git branch available to public, although right 
now it doesn't go beyond the patch attached.

Love,
H