1*e4664c0eSWu HaoWhat: /sys/bus/platform/devices/dfl-port.0/id 2*e4664c0eSWu HaoDate: June 2018 3*e4664c0eSWu HaoKernelVersion: 4.19 4*e4664c0eSWu HaoContact: Wu Hao <hao.wu@intel.com> 5*e4664c0eSWu HaoDescription: Read-only. It returns id of this port. One DFL FPGA device 6*e4664c0eSWu Hao may have more than one port. Userspace could use this id to 7*e4664c0eSWu Hao distinguish different ports under same FPGA device. 8