[xorg-bugzilla-noise] [Bug 971] New: Input device hotplug

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https://freedesktop.org/bugzilla/show_bug.cgi?id=971        
   
           Summary: Input device hotplug
           Product: xorg
           Version: CVS_head
          Platform: All
               URL: http://freedesktop.org/XOrg/XInputHotplug
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Server/general
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: krh at bitplanet.net


Attached is a first attempt at adding input device hotplug support to the Xorg
server.  Hotplugging is implemented by adding two requests to XInput:
XAddInputDevice() and XRemoveInputDevice().  Also, a DevicePresenceNotify event
is added to XInput; this event is sent to interested client when the list of
present devices change.

The XAddInputDevice() call takes a name for the device and the driver to use as
arguments, and a list of options in the form (name, value), name and value being
strings.  In this implementation, the meaning of the arguments are equivalent to
the contents of the xorg.conf "InputDevice" section, i.e. name maps to the
Identifer option and is used for the XInput device name, driver maps to the
Driver option and the (name, value) options maps to Option "name" "value".

When XAddInputDevice() successfully adds a new input device, this device is
present in the device list and available as if it had been in the xorg.conf file
with the given options, and a DevicePresenceNotify event is sent out.

Issues:

 - XRemoveInputDevice() not yet implemented
 - Security issues when you can ask the server to open any file as a device
 - Is the XAddInputDevice() design too xorg.conf specific?        
   
   
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