Re: [PATCH] input: Add support for the Bamboo Touch trackpad

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On Mon, Aug 30, 2010 at 11:19:49AM -0500, Chris Bagwell wrote:
> Hi Henrik,
> 
> On Mon, Aug 30, 2010 at 4:10 AM, Henrik Rydberg <rydberg@xxxxxxxxxxx> wrote:
> > Hi Chris,
> >
> >>> 1) It uses the MT slot protocol
> >>> 2) It creates two input devices, but only one is useful
> >>
> >> No biggy to userspace.  I'm assuming for unused input device that
> >> hardware is still reporting a HID_USAGE_STYLUS and probably you could
> >> catch that and not register that input device.
> >
> >
> > The initial idea was to only use the trackpad usb endnode, but the device does
> > not work at all after boot unless the silent endnode is somehow taken into
> > account. I am not sure what your statement refers to.
> >
> >>> 3) It works well with the synaptics and multitouch X drivers
> >>> 4) It does not work well with the wacom X driver (!)
> >>
> >> Once we finalize input events sent, I'm sure we could get
> >> xf86-input-wacom to play nice with this synaptic-style input events.
> >> The harder part is to develop userspace rules to assign this "wacom"
> >> input device to something other than xf86-input-wacom; especially in
> >> case were tablet has pen and touch input devices.
> >
> >
> > Using udev rules, the pen device is picked up by the wacom X driver and the
> > touch device is picked up by the synaptics X driver. It does not seem anything
> > extra is needed here.
> 
> You mean your wacom touch device are being directed to synaptics X
> driver without modifications to udev or similar rules?  On my
> unmodified Fedora box, they both go to wacom X driver.
> 
> Not that it would be a difficult modification... I'd just need to make
> those and work with distributions to also align.

50-wacom.conf sorts after 50-synaptics.conf and since we apply the wacom
driver to anything with Wacom in the product name, it overrides the
synaptics setting. not a big deal at all, just renaming it to 40-wacom.conf
should already do the job.

Cheers,
  Peter
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