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| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff b/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff new file mode 100644 index 000000000..de07be314 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff @@ -0,0 +1,75 @@ +What: /sys/bus/hid/drivers/logitech/<dev>/range +Date: July 2011 +KernelVersion: 3.2 +Contact: Michal Malý <madcatxster@devoid-pointer.net> +Description: Display minimum, maximum and current range of the steering + wheel. Writing a value within min and max boundaries sets the + range of the wheel. + +What: /sys/bus/hid/drivers/logitech/<dev>/alternate_modes +Date: Feb 2015 +KernelVersion: 4.1 +Contact: Michal Malý <madcatxster@devoid-pointer.net> +Description: Displays a set of alternate modes supported by a wheel. Each + mode is listed as follows: + + Tag: Mode Name + + Currently active mode is marked with an asterisk. List also + contains an abstract item "native" which always denotes the + native mode of the wheel. Echoing the mode tag switches the + wheel into the corresponding mode. Depending on the exact model + of the wheel not all listed modes might always be selectable. + If a wheel cannot be switched into the desired mode, -EINVAL + is returned accompanied with an explanatory message in the + kernel log. + This entry is not created for devices that have only one mode. + + Currently supported mode switches: + + Driving Force Pro:: + + DF-EX --> DFP + + G25:: + + DF-EX --> DFP --> G25 + + G27:: + + DF-EX <*> DFP <-> G25 <-> G27 + DF-EX <*--------> G25 <-> G27 + DF-EX <*----------------> G27 + + G29:: + + DF-EX <*> DFP <-> G25 <-> G27 <-> G29 + DF-EX <*--------> G25 <-> G27 <-> G29 + DF-EX <*----------------> G27 <-> G29 + DF-EX <*------------------------> G29 + + DFGT:: + + DF-EX <*> DFP <-> DFGT + DF-EX <*--------> DFGT + + * hid_logitech module must be loaded with lg4ff_no_autoswitch=1 + parameter set in order for the switch to DF-EX mode to work. + +What: /sys/bus/hid/drivers/logitech/<dev>/real_id +Date: Feb 2015 +KernelVersion: 4.1 +Contact: Michal Malý <madcatxster@devoid-pointer.net> +Description: Displays the real model of the wheel regardless of any + alternate mode the wheel might be switched to. + It is a read-only value. + This entry is not created for devices that have only one mode. + +What: /sys/bus/hid/drivers/logitech/<dev>/combine_pedals +Date: Sep 2016 +KernelVersion: 4.9 +Contact: Simon Wood <simon@mungewell.org> +Description: Controls whether a combined value of accelerator and brake is + reported on the Y axis of the controller. Useful for older games + which can do not work with separate accelerator/brake axis. + Off ('0') by default, enabled by setting '1'. |