1*4882a593SmuzhiyunWhat: /sys/bus/hid/drivers/logitech-hidpp-device/<dev>/range 2*4882a593SmuzhiyunDate: Jan, 2016 3*4882a593SmuzhiyunKernelVersion: 4.6 4*4882a593SmuzhiyunContact: linux-input@vger.kernel.org 5*4882a593SmuzhiyunDescription: 6*4882a593Smuzhiyun (RW) This attribute controls the amount of 'turn' permitted in 7*4882a593Smuzhiyun Logitech G920 wheel. Reading from the file shows the current 8*4882a593Smuzhiyun range of the steering wheel. Writing a value within the min and 9*4882a593Smuzhiyun max boundary sets the range of the wheel. 10*4882a593Smuzhiyun 11*4882a593SmuzhiyunWhat: /sys/bus/hid/drivers/logitech-hidpp-device/<dev>/builtin_power_supply 12*4882a593SmuzhiyunDate: Apr, 2017 13*4882a593SmuzhiyunKernelVersion: 4.12 14*4882a593SmuzhiyunContact: linux-input@vger.kernel.org 15*4882a593SmuzhiyunDescription: 16*4882a593Smuzhiyun Presence of this file indicates that HID++ driver is capable of 17*4882a593Smuzhiyun handling battery properties in the kernel. This way, upower can 18*4882a593Smuzhiyun add a udev rule to decide whether or not it should use the 19*4882a593Smuzhiyun internal unifying support or the generic kernel one. 20