/usr/share/psychtoolbox-3/PsychHardware/Daq/DaqAInScanBegin.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 | function params=DaqAInScanBegin(daq,options)
% params=DaqAInScanBegin(DeviceIndex,options)
% Calls DaqAInScan with the options set to only begin, and not continue or
% end. You should subsequently call DaqAInScanContinue (as many times as
% you like) and, finally, DaqAInScanEnd to get the data. For example:
% options.FirstChannel=FirstChannel;
% options.LastChannel=LastChannel;
% options.count=count;
% options.f=f;
% params=DaqAInScanBegin(DeviceIndex,options);
% for i=1:frames
% % add code here doing something useful
% params=DaqAInScanContinue(DeviceIndex,options);
% end
% params=DaqAInScanContinue(DeviceIndex,options);
% [data,params]=DaqAInScanEnd(DeviceIndex,options);
% See also DaqAInScan, DaqAInScanContinue, DaqAInScanEnd,
% Daq, DaqPins, DaqTest, PsychHIDTest.
% 4/15/05 dgp Wrote it.
% 1/10/08 mpr glanced at it; made same changes as in DaqAInScanContinue.
options.begin=1;
options.continue=0;
options.end=0;
[data,params]=DaqAInScan(daq,options);
return;
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