1What: /sys/bus/hid/drivers/logitech/<dev>/range 2Date: July 2011 3KernelVersion: 3.2 4Contact: Michal Malý <madcatxster@devoid-pointer.net> 5Description: Display minimum, maximum and current range of the steering 6 wheel. Writing a value within min and max boundaries sets the 7 range of the wheel. 8 9What: /sys/bus/hid/drivers/logitech/<dev>/alternate_modes 10Date: Feb 2015 11KernelVersion: 4.1 12Contact: Michal Malý <madcatxster@devoid-pointer.net> 13Description: Displays a set of alternate modes supported by a wheel. Each 14 mode is listed as follows: 15 Tag: Mode Name 16 Currently active mode is marked with an asterisk. List also 17 contains an abstract item "native" which always denotes the 18 native mode of the wheel. Echoing the mode tag switches the 19 wheel into the corresponding mode. Depending on the exact model 20 of the wheel not all listed modes might always be selectable. 21 If a wheel cannot be switched into the desired mode, -EINVAL 22 is returned accompanied with an explanatory message in the 23 kernel log. 24 This entry is not created for devices that have only one mode. 25 26 Currently supported mode switches: 27 Driving Force Pro: 28 DF-EX --> DFP 29 30 G25: 31 DF-EX --> DFP --> G25 32 33 G27: 34 DF-EX <*> DFP <-> G25 <-> G27 35 DF-EX <*--------> G25 <-> G27 36 DF-EX <*----------------> G27 37 38 DFGT: 39 DF-EX <*> DFP <-> DFGT 40 DF-EX <*--------> DFGT 41 42 * hid_logitech module must be loaded with lg4ff_no_autoswitch=1 43 parameter set in order for the switch to DF-EX mode to work. 44 45What: /sys/bus/hid/drivers/logitech/<dev>/real_id 46Date: Feb 2015 47KernelVersion: 4.1 48Contact: Michal Malý <madcatxster@devoid-pointer.net> 49Description: Displays the real model of the wheel regardless of any 50 alternate mode the wheel might be switched to. 51 It is a read-only value. 52 This entry is not created for devices that have only one mode. 53