Hardware database · 25BB:0121

Brunner FFB-G

25BB:0121 · 10 approved reports · first 2026-07-22, last 2026-08-20 · probe 1.0.8

Capability snapshots · latest per OS

What this device reports on each platform

Windows

10 reports · latest 2026-08-20 · probe 1.0.8

Microsoft Windows NT 10

Axes8

Buttons60

POVs1

FF sample period not reported reliably

Min time resolution not reported reliably

Firmware rev0x0000

Hardware rev0x0121

FF driver ver0x0001

A reported force-feedback interval or resolution of 1,000,000 µs (1 Hz) or more is firmware filler rather than a capability, and 1,000,000 µs is what this device reports. It is shown as unreported instead of being republished here.

Capability flags: DIDC_ATTACHED | DIDC_EMULATED | DIDC_FORCEFEEDBACK | DIDC_FFATTACK | DIDC_FFFADE | DIDC_SATURATION | DIDC_DEADBAND

Supported effects 12

Constant Force

DIEFT_CONSTANTFORCE | FFATTACK | FFFADE | STARTDELAY

Ramp Force

DIEFT_RAMPFORCE | FFATTACK | FFFADE | STARTDELAY

Square

DIEFT_PERIODIC | FFATTACK | FFFADE | STARTDELAY

Sine

DIEFT_PERIODIC | FFATTACK | FFFADE | STARTDELAY

Triangle

DIEFT_PERIODIC | FFATTACK | FFFADE | STARTDELAY

Sawtooth Up

DIEFT_PERIODIC | FFATTACK | FFFADE | STARTDELAY

Sawtooth Down

DIEFT_PERIODIC | FFATTACK | FFFADE | STARTDELAY

Spring

DIEFT_CONDITION | SATURATION | DEADBAND | STARTDELAY

Damper

DIEFT_CONDITION | SATURATION | DEADBAND | STARTDELAY

Inertia

DIEFT_CONDITION | SATURATION | DEADBAND | STARTDELAY

Friction

DIEFT_CONDITION | SATURATION | DEADBAND | STARTDELAY

Custom Force

DIEFT_CUSTOMFORCE | SATURATION | DEADBAND | STARTDELAY

Reported by OS

Submission count by OS family

Windows 10 reports

What testers felt · all approved reports

Chip selections by effect

Damper 10 reports

Damped x7 Resists motion x2 Did nothing x1

Friction 10 reports

Sticky x5 Strong friction x2 Weak friction x2 Did nothing x1

Inertia 10 reports

Heavy x5 Weak inertia x3 Did nothing x1 Lagging x1

Polarity sweep — DI east (right) (90°) 10 reports

Pulled forward x6 Pulled right x4

Polarity sweep — DI north (away) (0°) 10 reports

Pulled left x5 Pulled right x5

Polarity sweep — DI south (toward) (180°) 10 reports

Pulled left x5 Pulled forward x4 Pulled back x1

Polarity sweep — DI west (left) (270°) 10 reports

Pulled back x9 Pulled right x1

Saturation — 1 co-directional constants 10 reports

Did nothing x3 Strong pull x2 Pulled left x1 Pulled right x1

Saturation — 2 co-directional constants 10 reports

Pulled right x2 Soft pull x2 Brief jerk x1 Strong pull x1

Saturation — 3 co-directional constants 10 reports

Pulled right x3 Brief jerk x2 Soft pull x2 Pulled forward x1

Sawtooth Down 10 reports

Asymmetric ramp pulses x4 Strong x2 Weak x2 Repeated ramping x1 Slow x1

Sawtooth Up 10 reports

Asymmetric ramp pulses x6 Weak x2 Buzzing x1 Fast x1

Sine 10 reports

Smooth oscillation x7 Weak x2 Rocking back and forth x1

Spring 10 reports

Centered x5 Strong spring x2 Did nothing x1 No centering x1 Returns to center x1

Square 10 reports

Sharp pulses x6 Tapping x2 Weak x2

Triangle 10 reports

Rocking back and forth x4 Smooth oscillation x3 Weak x2 Slow x1

Two-axis diagonal — diagonal 10 reports

Pulled diagonally x8 Strong pull x2

Known device behaviour · Brunner DirectX mode

Directions are turned by 90° in DirectX mode

Brunner bases map their axes rotated by 90° in DirectX mode: a 0° force pulls right, 90° forward, 180° left and 270° back. This is Brunner's firmware behaviour, not a fault. FFB-Probe records it as measured and does not correct it, so the direction card can report an X/Y axis swap for this device. For the tests FFB-Probe also raises the base's stored DirectX gains, 50% from the factory, to 100% and restores them afterwards.

Direction consistency · constant-force direction tests

What the commanded directions actually did

Reports are consistent with an X/Y axis swap

Scored responses40

Matched5

Mismatched35

Consistency13%

No direction0

Several directions0

Unparseable0

Scoring covers the Windows polarity sweep and the Linux constant-force tests. A commanded direction is the direction the force comes from, so 0° should move the stick toward the tester. Scoring uses the documented mapping: 0° → Pulled back, 90° → Pulled left, 180° → Pulled forward, 270° → Pulled right. Answers that name more than one direction are counted separately and never scored.

Commanded	Expected	Observed	Matched	Mismatched
0° north (away)	Pulled back	Pulled left x5 Pulled right x5	0	10
90° east (right)	Pulled left	Pulled forward x6 Pulled right x4	0	10
180° south (toward)	Pulled forward	Pulled left x5 Pulled forward x4 Pulled back x1	4	6
270° west (left)	Pulled right	Pulled back x9 Pulled right x1	1	9

Technical results · all approved reports

Create / Play / Stop outcomes by effect

Effect	Reports	Create	Play	Stop
Damper	10	OK x10	OK x10	OK x10
Friction	10	OK x10	OK x10	OK x10
Inertia	10	OK x10	OK x10	OK x10
Sawtooth Down	10	OK x10	OK x10	OK x10
Sawtooth Up	10	OK x10	OK x10	OK x10
Sine	10	OK x10	OK x10	OK x10
Spring	10	OK x10	OK x10	OK x10
Square	10	OK x10	OK x10	OK x10
Triangle	10	OK x10	OK x10	OK x10

Diagnostic visibility · current policy

Technical diagnostics are aggregated on this page so driver authors and tool builders can compare what multiple testers saw, including Windows and Linux runs for the same VID:PID. They use closed result names and path-redacted errors; the private response-notes field includes typed text and the probe-measured motion.

What's NOT on this page

The one private field

The per-effect responses[].notes field stays off this page. It can contain optional typed text and the probe-measured motion. Capability flags, supported effects, OS breakdown, test strength, chip labels, result codes, failed effects, and run errors can be published in aggregate or as a latest-per-platform snapshot. Read the full privacy contract →

Measured motion is what the probe saw on the stick's X and Y axes while each effect played: the signed peak movement as a percentage of the axis's half range, for example X peak +25.1%. It is measured from where the stick rested when the effect started, so it can exceed 100% when the stick rests off-centre. Condition effects such as spring and damper are not expected to move a centred stick.

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