162306a36Sopenharmony_ciWhat: /sys/class/fpga_region/<region>/compat_id 262306a36Sopenharmony_ciDate: June 2018 362306a36Sopenharmony_ciKernelVersion: 4.19 462306a36Sopenharmony_ciContact: Wu Hao <hao.wu@intel.com> 562306a36Sopenharmony_ciDescription: FPGA region id for compatibility check, e.g. compatibility 662306a36Sopenharmony_ci of the FPGA reconfiguration hardware and image. This value 762306a36Sopenharmony_ci is defined or calculated by the layer that is creating the 862306a36Sopenharmony_ci FPGA region. This interface returns the compat_id value or 962306a36Sopenharmony_ci just error code -ENOENT in case compat_id is not used. 10