iio: Add ABI documentation for input current readings

Add information on in_current related readings.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Adam Thomson 2014-11-25 18:25:39 +00:00 • committed by Jonathan Cameron
commit 7f1c2cbbda