/usr/share/psychtoolbox-3/PsychHardware/Daq/DaqDOut.m is in psychtoolbox-3-common 3.0.11.20140816.dfsg1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | function err=DaqDOut(daq,port,data)
% err=DaqDOut(DeviceIndex,port,data)
% USB-1208FS: Write digital port. This command writes data to the DIO port
% bits that are configured as outputs.
% "DeviceIndex" is a small integer, the array index specifying which HID
% device in the array returned by PsychHID('Devices') is interface 0
% of the desired USB-1208FS box.
% "port" 0 = port A, 1 = port B
% "data" 8-bit value, 0 to 255.
%
% USB-1608FS: Only has one DIO port, so second argument is irrelevant and will
% be ignored if passed. Function will check to determine if device is a 1608,
% and act accordingly.
%
% USB-1024LS: Has three ports, probably numbered: 1 = port A, 4 = port B,
% 10 = port C (the sum of: 8 = portC low, 2 = portC high). Maybe you'll
% need to set port C separately in two calls for low- and high- part.
%
%
% See also Daq, DaqFunctions, DaqPins, DaqTest, PsychHIDTest.
% DaqDeviceIndex, DaqDIn, DaqDOut, DaqAIn, DaqAOut, DaqAInScan,DaqAOutScan.
%
% 4/15/05 dgp Wrote it.
% 12/18/07 mpr updated for use with USB-1608FS
% 1/11/08 mpr swept through trying to improve consistency across daq
% functions
% 5/22/08 mk Add (untested!) support for USB-1024LS box.
% 5/23/08 mk Add caching for HID device list.
% Perform internal caching of list of HID devices in 'TheDevices'
% to speedup call:
persistent TheDevices;
if isempty(TheDevices)
TheDevices = PsychHIDDAQS;
end
% Denis(?) commented these out. Don't know why. For speed, I would guess.
% If you choose to comment them back in, then structure of code should
% change. Logic should remain that two arguments are expected for 1608FS
% and three arguments for other device types.
%
% if ~ismember(port,0:1)
% error('"port" must be 0 or 1.');
% end
% if ~ismember(data,0:255)
% error('"data" must be in range 0:255.');
% end
if strcmp(TheDevices(daq).product(5:6),'16')
if nargin == 2
data = port;
end
TheReport = uint8([0 data]);
% Default reportId for 1x08FS devices is 4:
reportId = 4;
else
TheReport = uint8([0 port data]);
% Default reportId for 1x08FS devices is 4:
reportId = 4;
end
% Is this a USB-1024LS or similar?
if ismember(TheDevices(daq).productID, [ 118, 127 ])
% Yes. Need different reportId and report:
reportId = 0;
TheReport=uint8([1 port data 0 0 0 0 0]);
end
err=PsychHID('SetReport',daq,2,reportId,TheReport); % DOut
if err.n
fprintf('DaqDOut error 0x%s. %s: %s\n',hexstr(err.n),err.name,err.description);
end
return;
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