From: Jonathan Cameron <jic23@kernel.org>
Date: Sat, 5 May 2012 09:39:22 +0000 (+0100)
Subject: IIO: Add a modifier for sqrt(x^2+y^2)
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8f5879b20be7f918cdc4b3d831cfd8f3dc02c74c;p=linux-beck.git

IIO: Add a modifier for sqrt(x^2+y^2)

There will probably be a number of such modifiers eventually but
this one is used in the adis16204 accelerometer driver.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index a5a446beb2fa..e42749ec5c3c 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -70,6 +70,7 @@ static const char * const iio_modifier_names[] = {
 	[IIO_MOD_X] = "x",
 	[IIO_MOD_Y] = "y",
 	[IIO_MOD_Z] = "z",
+	[IIO_MOD_ROOT_SUM_SQUARED_X_Y] = "sqrt(x^2+y^2)",
 	[IIO_MOD_LIGHT_BOTH] = "both",
 	[IIO_MOD_LIGHT_IR] = "ir",
 };
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index d086736a9033..210559ddf8a3 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -44,6 +44,7 @@ enum iio_modifier {
 	IIO_MOD_X_OR_Y_OR_Z,
 	IIO_MOD_LIGHT_BOTH,
 	IIO_MOD_LIGHT_IR,
+	IIO_MOD_ROOT_SUM_SQUARED_X_Y,
 };
 
 #define IIO_VAL_INT 1