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+What: /sys/devices/.../physical_location
+Date: March 2022
+Contact: Won Chung <wonchung@google.com>
+Description:
+ This directory contains information on physical location of
+ the device connection point with respect to the system's
+ housing.
+
+What: /sys/devices/.../physical_location/panel
+Date: March 2022
+Contact: Won Chung <wonchung@google.com>
+Description:
+ Describes which panel surface of the system’s housing the
+ device connection point resides on.
+
+What: /sys/devices/.../physical_location/vertical_position
+Date: March 2022
+Contact: Won Chung <wonchung@google.com>
+Description:
+ Describes vertical position of the device connection point on
+ the panel surface.
+
+What: /sys/devices/.../physical_location/horizontal_position
+Date: March 2022
+Contact: Won Chung <wonchung@google.com>
+Description:
+ Describes horizontal position of the device connection point on
+ the panel surface.
+
+What: /sys/devices/.../physical_location/dock
+Date: March 2022
+Contact: Won Chung <wonchung@google.com>
+Description:
+ "Yes" if the device connection point resides in a docking
+ station or a port replicator. "No" otherwise.
+
+What: /sys/devices/.../physical_location/lid
+Date: March 2022
+Contact: Won Chung <wonchung@google.com>
+Description:
+ "Yes" if the device connection point resides on the lid of
+ laptop system. "No" otherwise.