---
name: "ffcfstress"
section: "1"
platform: "linux"
package: "joyutils"
version: "1.8.1-4"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/ffcfstress"
---

# ffcfstress(1)

constant force stress test for force-feedback devices

## NAME

ffcfstress - constant force stress test for force-feedback devices

## SYNOPSIS

**ffcfstress** \[**-d** \<*device*\>\] \[**-u** \<*update rate*\>\] \[**-f** \<*frequency*\>\] \[**-a** \<*amplitude*\>\] \[**-s** \<*strength*\>\] \[**-x** \<*axis*\>\] \[**-A**\] \[**-o**\]

## 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).

- **-x** \<*axis*\>

  absolute axis to test (default: 0)\
   \[0 = X, 1 = Y, 2 = Z, 3 = RX, 4 = RY, 5 = RZ, 6 = WHEEL\]

- **-A**

  switch off auto-centering

- **-o**

  Dummy option, useful when all defaults should be used.

## SEE ALSO

[**ffmvforce**(1)](/ffmvforce/1.md), [**fftest**(1)](/fftest/1.md), [**jstest**(1)](/jstest/1.md).

## 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.