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