/usr/share/psychtoolbox-3/PsychHardware/Daq/DaqCIn.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 75 76 77 78 79 | function count=DaqCIn(daq)
% count=DaqCIn(DeviceIndex)
% USB-1208FS: Read counter.
% This function reads the 32-bit event counter in the device. This counter
% tallies the transitions of an external input attached to the CTR pin on
% the screw terminal of the device.
% "count" is the 32-bit value.
% "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.
% See also Daq, DaqFunctions, DaqPins, DaqTest, PsychHIDTest.
%
% 4/15/05 dgp Wrote it.
% 12/20/07 mpr tested it on a 1608FS and made input argument optional
% 1/13/08 mpr swept through and tried to make terminology consistent
% with that of other 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
if ~nargin || isempty(daq)
daq=DaqFind;
end
% Default reportId for 1x08FS devices is 33:
reportId = 33;
TheReport = uint8(33);
replength = 5;
% Is this a USB-1024LS or similar?
if ismember(TheDevices(daq).productID, [ 118, 127 ])
% Yes. Need different reportId and report:
reportId = 0;
TheReport=uint8([4 0 0 0 0 0 0 0]);
replength = 4;
Is1024LS=1;
else
Is1024LS=0;
end
err=PsychHID('ReceiveReports',daq);
err=PsychHID('ReceiveReportsStop',daq);
[reports,err]=PsychHID('GiveMeReports',daq);
err=PsychHID('SetReport',daq,2,reportId,TheReport); % CIn
if err.n
fprintf('DaqCIn SetReport error 0x%s. %s: %s\n',hexstr(err.n),err.name,err.description);
end
[report,err]=PsychHID('GetReport',daq,1,reportId,replength); % get report
if err.n
fprintf('DaqCIn GetReport error 0x%s. %s: %s\n',hexstr(err.n),err.name,err.description);
end
if ~Is1024LS
if length(report)==5
% 4 bytes
report=double(report);
count=report(2)+256*(report(3)+256*(report(4)+256*report(5)));
else
count=[];
end
else
if length(report)==4
% 4 bytes
report=double(report);
count=report(1)+256*(report(2)+256*(report(3)+256*report(4)));
else
count=[];
end
end
err=PsychHID('ReceiveReportsStop',daq);
return;
|