hwmon: (sht21) Add Electronic Identification Code retrieval
Expose the per-chip unique identifier so it can be used to identify the
sensor producing the measurements.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/Documentation/hwmon/sht21 b/Documentation/hwmon/sht21
index db17fda..47f4765 100644
--- a/Documentation/hwmon/sht21
+++ b/Documentation/hwmon/sht21
@@ -35,6 +35,7 @@
temp1_input - temperature input
humidity1_input - humidity input
+eic - Electronic Identification Code
Notes
-----
@@ -45,5 +46,5 @@
Celsius, the device should not be active for more than 10% of the time,
e.g. maximum two measurements per second at the given resolution.
-Different resolutions, the on-chip heater, using the CRC checksum and reading
-the serial number are not supported yet.
+Different resolutions, the on-chip heater, and using the CRC checksum
+are not supported yet.
