struct_ff_replay(9) suse man page | unix.com

STRUCT 
FF_REPLAY(9)						  Input Subsystem					       STRUCT FF_REPLAY(9)

NAME
       struct_ff_replay - defines scheduling of the force-feedback effect

SYNOPSIS
       struct ff_replay {
	 __u16 length;
	 __u16 delay;
       };

MEMBERS
       length
	   duration of the effect

       delay
	   delay before effect should start playing

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						       STRUCT FF_REPLAY(9)