1What: /sys/bus/platform/devices/dfl-port.0/id 2Date: June 2018 3KernelVersion: 4.19 4Contact: Wu Hao <hao.wu@intel.com> 5Description: Read-only. It returns id of this port. One DFL FPGA device 6 may have more than one port. Userspace could use this id to 7 distinguish different ports under same FPGA device. 8