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NAME

       ffcfstress - constant force stress test for force-feedback devices

SYNOPSIS

       ffcfstress  [-d  <device>]  [-u  <update  rate>]  [-f  <frequency>] [-a
       <amplitude>] [-s <strength>] [-o]

DESCRIPTION

       ffcfstress stress  tests  constant  non-enveloped  forces  on  a  force
       feedback  device.   It  simulates  a  moving spring force by applying a
       frequently updated constant force effect.

       Beware, the stress test may damage your device!

OPTIONS

       At least one option is required.

       -d <device>
              The device to test (by default /dev/input/event0).

       -u <update rate>
              The update rate in Hz (25 by default).

       -f <frequency>
              The spring center motion frequency in Hz (0.1 by default).

       -a <amplitude>
              The spring center motion amplitude, between 0.0 and 1.0 (1.0  by
              default).

       -s <strength>
              The spring strength factor (1.0 by default).

       -o     Dummy option, useful when all defaults should be used.

SEE ALSO

       ffmvforce(1), fftest(1), jstest(1).

AUTHOR

       ffcfstress was written by Oliver Hamann.

       This  manual  page was written by Stephen Kitt <steve@sk2.org>, for the
       Debian GNU/Linux system (but may be  used  by  others).   It  was  last
       modified for ffcfstress dated February 15, 2002.