Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / ABI / testing / sysfs-driver-hid-logitech-lg4ff

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+What:          /sys/module/hid_logitech/drivers/hid:logitech/<dev>/range.
+Date:          July 2011
+KernelVersion: 3.2
+Contact:       Michal Malý <madcatxster@gmail.com>
+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@gmail.com>
+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
+
+               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@gmail.com>
+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.