What: /sys/bus/usb/devices/-:./::./report_descriptor What: /sys/class/bluetooth/hci/::./report_descriptor What: /sys/class/hidraw/hidraw/device/report_descriptor Date: Jan 2011 KernelVersion: 2.0.39 Contact: Alan Ott Description: When read, this file returns the device's raw binary HID report descriptor. This file cannot be written. Users: HIDAPI library (http://www.signal11.us/oss/hidapi) What: /sys/bus/usb/devices/-:./::./country What: /sys/class/bluetooth/hci/::./country What: /sys/class/hidraw/hidraw/device/country Date: February 2015 KernelVersion: 3.19 Contact: Olivier Gay Description: When read, this file returns the hex integer value in ASCII of the device's HID country code (e.g. 21 for US). This file cannot be written.