replaced with the numeric value of the endo layout
scheme as documented in the ARA Module Developer Kit.
+What: /sys/bus/greybus/device/endo-XXXX/Endo/id
+Date: October 2015
+KernelVersion: 4.XX
+Contact: Greg Kroah-Hartman <greg@kroah.com>
+Description:
+ The Endo ID, which is a 2-byte hexadecimal value
+ defined by the the Endo layout scheme, documented in
+ the ARA Module Developer Kit.
+
+What: /sys/bus/greybus/device/endo-XXXX/Endo/ap_intf_id
+Date: October 2015
+KernelVersion: 4.XX
+Contact: Greg Kroah-Hartman <greg@kroah.com>
+Description:
+ The AP interface ID, a small non-zero integer which
+ defines the position of the AP module on the Endo.
+ The interface positions are defined in the ARA
+ Module Developer Kit.
+
What: /sys/bus/greybus/device/endo-XXXX/SVC/serial_number
Date: October 2015
KernelVersion: 4.XX