1*4882a593SmuzhiyunWhat: /sys/class/fpga_region/<region>/compat_id 2*4882a593SmuzhiyunDate: June 2018 3*4882a593SmuzhiyunKernelVersion: 4.19 4*4882a593SmuzhiyunContact: Wu Hao <hao.wu@intel.com> 5*4882a593SmuzhiyunDescription: FPGA region id for compatibility check, e.g. compatibility 6*4882a593Smuzhiyun of the FPGA reconfiguration hardware and image. This value 7*4882a593Smuzhiyun is defined or calculated by the layer that is creating the 8*4882a593Smuzhiyun FPGA region. This interface returns the compat_id value or 9*4882a593Smuzhiyun just error code -ENOENT in case compat_id is not used. 10