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+What: /sys/class/uacce/<dev_name>/api
+Date: Feb 2020
+KernelVersion: 5.7
+Contact: linux-accelerators@lists.ozlabs.org
+Description: Api of the device
+ Can be any string and up to userspace to parse.
+ Application use the api to match the correct driver
+
+What: /sys/class/uacce/<dev_name>/flags
+Date: Feb 2020
+KernelVersion: 5.7
+Contact: linux-accelerators@lists.ozlabs.org
+Description: Attributes of the device, see UACCE_DEV_xxx flag defined in uacce.h
+
+What: /sys/class/uacce/<dev_name>/available_instances
+Date: Feb 2020
+KernelVersion: 5.7
+Contact: linux-accelerators@lists.ozlabs.org
+Description: Available instances left of the device
+ Return -ENODEV if uacce_ops get_available_instances is not provided
+
+What: /sys/class/uacce/<dev_name>/algorithms
+Date: Feb 2020
+KernelVersion: 5.7
+Contact: linux-accelerators@lists.ozlabs.org
+Description: Algorithms supported by this accelerator, separated by new line.
+ Can be any string and up to userspace to parse.
+
+What: /sys/class/uacce/<dev_name>/region_mmio_size
+Date: Feb 2020
+KernelVersion: 5.7
+Contact: linux-accelerators@lists.ozlabs.org
+Description: Size (bytes) of mmio region queue file
+
+What: /sys/class/uacce/<dev_name>/region_dus_size
+Date: Feb 2020
+KernelVersion: 5.7
+Contact: linux-accelerators@lists.ozlabs.org
+Description: Size (bytes) of dus region queue file