xf86-input-evdev: Changes to 'master'

[Peter Hutterer]

 src/evdev.c |   97 +++++++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 77 insertions(+), 20 deletions(-)

New commits:
commit f352598e45be86f9e24d9dba88c657f03f3b168e
Author: Michael Witten <mfwitten at gmail.com>
Date:   Tue Aug 4 03:11:49 2009 -0500

    evdev.c: Fix/improve discrimination of rel/abs axes
    
    The relevant comment from evdev.c:
    
    We don't allow relative and absolute axes on the same device. The
    reason is that some devices (MS Optical Desktop 2000) register both
    rel and abs axes for x/y.
    
    The abs axes register min/max; this min/max then also applies to the
    relative device (the mouse) and caps it at 0..255 for both axes.
    So, unless you have a small screen, you won't be enjoying it much;
    consequently, absolute axes are generally ignored.
    
    However, currenly only a device with absolute axes can be registered
    as a touch{pad,screen}. Thus, given such a device, absolute axes are
    used and relative axes are ignored.
    
    The code for initializing abs/rel axes has been abstracted out into
    3 functions, so that initialization in EvdevInit(device) is as easy
    as:
    
        if (pEvdev->flags & (EVDEV_TOUCHPAD | EVDEV_TOUCHSCREEN))
            EvdevInitTouchDevice(device, pEvdev);
        else if (pEvdev->flags & EVDEV_RELATIVE_EVENTS)
            EvdevInitRelClass(device, pEvdev);
        else if (pEvdev->flags & EVDEV_ABSOLUTE_EVENTS)
            EvdevInitAbsClass(device, pEvdev);
    
    Signed-off-by: Michael Witten <mfwitten at gmail.com>
    Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>