Comment 4 for bug 1243873

@rquint - this helped - thank you!
I also had to add a udev rule as follows:

# File: 60-wacom-rules
# udev rules for wacom tablets.

    KERNEL!="event[0-9]*", GOTO="wacom_end"

    # Multiple interface support for stylus and touch devices.
    DRIVERS=="wacom", ATTRS{bInterfaceNumber}=="00", ENV{WACOM_TYPE}="stylus"
    DRIVERS=="wacom", ATTRS{bInterfaceNumber}=="01", ENV{WACOM_TYPE}="touch"

    # Convenience links for the common case of a single tablet. We could do just this:
    #ATTRS{idVendor}=="056a", SYMLINK+="input/wacom-$env{WACOM_TYPE}"
    # but for legacy reasons, we keep the input/wacom link as the generic stylus device.
    ATTRS{idVendor}=="056a", ENV{WACOM_TYPE}!="touch", SYMLINK+="input/wacom"
    ATTRS{idVendor}=="056a", ENV{WACOM_TYPE}=="touch", SYMLINK+="input/wacom-touch"

    # Check and repossess the device if a module other than the wacom one
    # is already bound to it.
    ATTRS{idVendor}=="056a", ACTION=="add", RUN+="check_driver wacom $devpath $env{ID_BUS}"

    LABEL="wacom_end"

# End of 60-wacom-rules

You will need to modprobe after if adding a udev rule, assuming that installing xf86-input-wacom-0.22.1.tar.bz2 didn't get things working for you.