sysfs-driver-hid

 1What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/report_descriptor
 2What:		/sys/class/bluetooth/hci<addr>/<hid-bus>:<vendor-id>:<product-id>.<num>/report_descriptor
 3What:		/sys/class/hidraw/hidraw<num>/device/report_descriptor
 4Date:		Jan 2011
 5KernelVersion:	2.0.39
 6Contact:	Alan Ott <alan@signal11.us>
 7Description:	When read, this file returns the device's raw binary HID
 8		report descriptor.
 9		This file cannot be written.
10Users:		HIDAPI library (http://www.signal11.us/oss/hidapi)
11
12What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/country
13What:		/sys/class/bluetooth/hci<addr>/<hid-bus>:<vendor-id>:<product-id>.<num>/country
14What:		/sys/class/hidraw/hidraw<num>/device/country
15Date:		February 2015
16KernelVersion:	3.19
17Contact:	Olivier Gay <ogay@logitech.com>
18Description:	When read, this file returns the hex integer value in ASCII
19		of the device's HID country code (e.g. 21 for US).
20		This file cannot be written.