Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
ffset --help (return code: 1)
Usage: ffset /dev/input/eventXX [-g gain] [-a autocenter_strength]
Sets the gain and the autocenter of a force-feedback device
Values should belong to 0 to 100