1*41a8b2c5SWu HaoWhat:		/sys/class/fpga_region/<region>/compat_id
2*41a8b2c5SWu HaoDate:		June 2018
3*41a8b2c5SWu HaoKernelVersion:	4.19
4*41a8b2c5SWu HaoContact:	Wu Hao <hao.wu@intel.com>
5*41a8b2c5SWu HaoDescription:	FPGA region id for compatibility check, e.g. compatibility
6*41a8b2c5SWu Hao		of the FPGA reconfiguration hardware and image. This value
7*41a8b2c5SWu Hao		is defined or calculated by the layer that is creating the
8*41a8b2c5SWu Hao		FPGA region. This interface returns the compat_id value or
9*41a8b2c5SWu Hao		just error code -ENOENT in case compat_id is not used.
10