141a8b2c5SWu HaoWhat: /sys/class/fpga_region/<region>/compat_id 241a8b2c5SWu HaoDate: June 2018 341a8b2c5SWu HaoKernelVersion: 4.19 441a8b2c5SWu HaoContact: Wu Hao <hao.wu@intel.com> 541a8b2c5SWu HaoDescription: FPGA region id for compatibility check, e.g. compatibility 641a8b2c5SWu Hao of the FPGA reconfiguration hardware and image. This value 741a8b2c5SWu Hao is defined or calculated by the layer that is creating the 841a8b2c5SWu Hao FPGA region. This interface returns the compat_id value or 941a8b2c5SWu Hao just error code -ENOENT in case compat_id is not used. 10