/usr/share/psychtoolbox-3/PsychHardware/FORP/FORPQueueClear.m is in psychtoolbox-3-common 3.0.12.20160126.dfsg1-1ubuntu1.
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 | function FORPQueueClear(deviceNumber)
% Remove all reports from HID device 'deviceNumber':
% Helper function for FORPCheck.
%
% Written and contributed by:
%
% Florian Stendel
% Visual Processing Lab
% Universitaets - Augenklinik Magdeburg
% Leipziger Strasse 44
% 39120 Magdeburg
% Tel: 0049 (0)391 67 21723
% Email: vincentdhs@gmx.de
%
r=1;
while ~isempty(r) % while there's a returned Keypress..get a new one
[r,err]=PsychHID('GetReport',deviceNumber,1,0,8); % flush any old reports.
end
PsychHID('ReceiveReportsStop',deviceNumber);
end
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