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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+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'.