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Subject[PATCH v2 0/4] HID: hid-lg4ff: Improve handling of Logitech multimode gaming wheels
This patch series improves handling of various Logitech gaming wheels and
allows switching between various compatibility modes which might be useful
to improve compatibility with very old games and testing purposes.

Signed-off-by: Michal Malý <>

v2: - Rebased against latest linux-next
- Document the newly introduced sysfs interfaces in appropriate commits
- Assume that we are targeting kernel version 4.1
- Fix a misleading error message regarding unsupported wheel mode

Michal Malý (4):
Identify Logitech gaming wheels in compatibility modes accordingly to
Logitech specifications
Display the real wheel model and supported alternate modes through
sysfs. This applies only to multimode wheels.
Introduce a module parameter to disable automatic switch of Logitech
gaming wheels from compatibility to native mode. This only applies
to multimode wheels.
Allow switching of Logitech gaming wheels between available
compatibility modes through sysfs. This only applies to multimode

.../ABI/testing/sysfs-driver-hid-logitech-lg4ff | 45 ++
drivers/hid/hid-lg.c | 6 +
drivers/hid/hid-lg4ff.c | 605 ++++++++++++++++++---
3 files changed, 580 insertions(+), 76 deletions(-)


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