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Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff b/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff index 167d9032b970..b3f6a2ac5007 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff +++ b/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff @@ -5,3 +5,48 @@ 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. |