function Activewire
%
% The Psychtoolbox ACTIVEWIRE command is used to control the ActiveWire USB 
% device wich provides 16 bits of parallel bi-directional digital i/o.  The 
% ActiveWire device is useful for interfacing your Mac or PC to other devices
% such as lab equipment or custom-made subject response boxes.  
% See http://www.activewireinc.com/ for more information on the ActiveWire 
% device or to purchase.  
%
% ACTIVEWIRE with no arguments lists ACTIVEWIRE commands. To obtain help on
% a command follow the name of the command with a question mark.
% For example, to get help on the 'OpenDevice' command at the Matlab prompt
% enter:
% ACTIVEWIRE('OpenDevice?')
%
% Mac: The Psychtoolbox ACTIVEWIRE command requires:
%
%  -You must be using a computer with a USB port.
%  -You must have an ActiveWire device on your computer's USB bus.    
%  -The the system extension named "ActiveWire¨ Driver" must be placed in the
%   extensions folder within your system folder.  The ActiveWire¨ Driver file
%   is distributed with the Psychtoolbox within the folder:
%   Psychtoolbox:PsychHardware:ActiveWire.  If you used the Psychtoolbox 
%   installer to install the Psychtoolbox then the installer should have 
%   moved a copy of the ActiveWire¨ Driver file to the extensions folder for 
%   you.  
%
% WIN:
%
%  -You must be using a computer with a USB port.
%  -You must have an ActiveWire device on your computer's USB bus.
%  -Follow the instructions for downloading and installing the ActiveWire 
%   driver.  The instructions can be found here: 
%   http://www.activewireinc.com/download.htm
%
% 
