completed README, added example LogicPort udev rule file

README.md

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+This is a Linux WINE dll.so that substitutes for the FTDI's D2XX drivers.
+It is effectively a shim layer between the FTDI's Linux D2XX drivers and WINE.
+
+Almost all calls are emulated, except those that have no meaning under Unix.
+To date, however, it has been tested only with the Intronix LogicPort running 
+under 32-bit Intel Linux.  64-bit Intel *should* also work.
+
+Note that wine version >= 1.7.27 is recommended.
+
+To install, after cloning this repository locally:
+
+1)  confirm that you have a functioning wine version >= 1.7.27
+    You must it such that the desired wine executable and tools are 
+    in your $PATH.
+
+2)  at the top level directory of the repository, type:
+
+  $  make 
+
+    This will fetch the required libraries from FTDI's website and build 
+    ftd2xx.dll.so and libftd2xx.def
+
+3)  To add these files in your wine installation:
+
+  $  sudo   make  install
+
+
+4)  Ensure that your users have permission to access to the USB FTDI devices.
+    If you use udev, this will likely involve adding rules in /etc/udev/rules.d
+
+    For example, the Intronix LogicPort might be made accessible to all users
+    in the plugdev group by:
+
+    # sudo  cp  etc/udev/rules.d/81-logicport.rules  /etc/udev/rules.d
+
+    Use 81-logicport.rules as a template if you have a different device.
+
+
+5)  ftd2xx.dll.so requires that the FTDID variable be set to indicate the 
+    USB Vendor and Product ID of the FTD2xx device your Windows application
+    controls.  The syntax of the FTDID variable is either:
+
+    FTDID=<USB Product ID>
+
+    or:
+
+    FTDID=<USB Vendor ID>:<USB Product ID>
+
+    Product and Vendor ID are in hexidecimal.
+    If omitted, the Vendor is assumed to be 0403 (hex).
+
+    For example, 
+      to start the windows application controlling Intronix LogicPort:
+
+    $ FTDID=DC48 wine ~/.wine/drive_c/Program\ Files/LogicPort/LogicPort.exe 
+
+The only issue I see with LogicPort.exe running under Wine is that the
+command shortcut buttons do not render until one hovers the cursor over them.
+Thus, at most one is visible at any time.
+This is not really much of an issue, as the buttons do work when clicked and
+all their functions are also available on dropdown menus.

etc/udev/rules.d/81-logicport.rules

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+#Intronix Logicport logic analyzer
+SUBSYSTEM=="usb", ATTR{idVendor}=="0403", ATTRS{idProduct}=="dc48", MODE="0664", GROUP="plugdev"