Re: [Linuxwacom-devel] 0.8.1-1 on HP tx2500z

[Danny K. <dan...@we...>]

On Donnerstag, 21. August 2008, Michał Pytasz wrote:
> Wednesday 20 of August 2008 23:35:02 Danny Kukawka napisał(a):
> > On Mittwoch, 20. August 2008, Danny Kukawka wrote:
> > > Hi,
> > >
> > > On Montag, 11. August 2008, you wrote:
> > > > An atempt to udev.rules has been made around May this year (refer to
> > > > [Linuxwacom-devel] Slightly modified wacom.rule for detail).  But no
> > > > real solution has been found due to the fact that the same physical
> > > > device supports two types of input: stylus and touch. Changes/updates
> > > > in udev are needed before we can do anything.  Danny, do you have
> > > > conact at udev group?
> > >
> > > IMO the static link /dev/input/wacom make no sense, we should
> > > use /dev/input/by-id/* instead. I'm already in discussion with the udev
> > > maintainer to find a solution.
> >
> > @Ping: Can you tell me if every tabletPC has only one of the different
> > USB devices (0x90;0x93;0x9a) which provides stylus and/or touch  or if
> > there are machines wich have two (e.g. one for stylus and another for
> > touch) devices.
> >
> > Can someone please run:
> >
> > udevadm test
> > /devices/pci0000:00/0000:00:1d.7/usb6/6-1/input/input18/event8
> >
> > on a TabletPC with a internal USB Tablet with stylus and touch (as the HP
> > tx2500z) and send me the output? Replace the device path with the correct
> > path of link to the wacom device(s) (use 'ls -alF /sys/class/input' to
> > find out).
> >
> > Danny
>
> for /dev/input/event7
> Input device ID: bus 0x3 vendor 0x56a product 0x93 version 0x330
> Input device name: "Wacom ISDv4 USB"
>
> udevadm test /sys/class/input/input7/event7/
>
> (cut useless part about parsed files)
[...]
>
> for /dev/input/event8
> Input driver version is 1.0.0
> Input device ID: bus 0x3 vendor 0x56a product 0x93 version 0x330
> Input device name: "Wacom ISDv4 USB"
>
> udevadm test /sys/class/input/input8/event8
>
> (cut useless part about parsed files)
[...]
>
> run on tx2010eo

Thanks for the info. 

Could you try if these two lines generates something useful 
under /dev/input/by-id/ for the touch devices:

KERNEL=="mouse*", ENV{ID_BUS}=="?*", ENV{ID_SERIAL}=="Tablet_ISD-V4", 
ENV{ID_VENDOR}=="Tablet", ENV{ID_CLASS}=="", 
SYMLINK+="input/by-id/$env{ID_BUS}-$env{ID_SERIAL}-touch"

KERNEL=="event*", ENV{ID_BUS}=="?*", ENV{ID_SERIAL}=="Tablet_ISD-V4", 
ENV{ID_VENDOR}=="Tablet", ENV{ID_CLASS}=="", 
SYMLINK+="input/by-id/$env{ID_BUS}-$env{ID_SERIAL}-event-touch"

You have to add them to /etc/udev/rules.d/60-persistent-input.rules under the 
existing rules of the '# by-id links' section.

Would be useful to get again the udevadm output with these rules included.

Danny