--- zzzz-none-000/linux-3.10.107/Documentation/i2c/ten-bit-addresses	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/Documentation/i2c/ten-bit-addresses	2021-02-04 17:41:59.000000000 +0000
@@ -2,6 +2,10 @@
 addresses, and an extended set of 10 bit addresses. The sets of addresses
 do not intersect: the 7 bit address 0x10 is not the same as the 10 bit
 address 0x10 (though a single device could respond to both of them).
+To avoid ambiguity, the user sees 10 bit addresses mapped to a different
+address space, namely 0xa000-0xa3ff. The leading 0xa (= 10) represents the
+10 bit mode. This is used for creating device names in sysfs. It is also
+needed when instantiating 10 bit devices via the new_device file in sysfs.
 
 I2C messages to and from 10-bit address devices have a different format.
 See the I2C specification for the details.