diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index c9cfa833cf47..a5b4f223641d 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1307,13 +1307,16 @@ What:		/sys/.../iio:deviceX/in_intensityY_raw
 What:		/sys/.../iio:deviceX/in_intensityY_ir_raw
 What:		/sys/.../iio:deviceX/in_intensityY_both_raw
 What:		/sys/.../iio:deviceX/in_intensityY_uv_raw
+What:		/sys/.../iio:deviceX/in_intensityY_duv_raw
 KernelVersion:	3.4
 Contact:	linux-iio@vger.kernel.org
 Description:
 		Unit-less light intensity. Modifiers both and ir indicate
 		that measurements contain visible and infrared light
-		components or just infrared light, respectively. Modifier uv indicates
-		that measurements contain ultraviolet light components.
+		components or just infrared light, respectively. Modifier
+		uv indicates that measurements contain ultraviolet light
+		components. Modifier duv indicates that measurements
+		contain deep ultraviolet light components.
 
 What:		/sys/.../iio:deviceX/in_uvindex_input
 KernelVersion:	4.6
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index a16ad5a4ab0c..a062cfddc5af 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -110,6 +110,7 @@ static const char * const iio_modifier_names[] = {
 	[IIO_MOD_LIGHT_GREEN] = "green",
 	[IIO_MOD_LIGHT_BLUE] = "blue",
 	[IIO_MOD_LIGHT_UV] = "uv",
+	[IIO_MOD_LIGHT_DUV] = "duv",
 	[IIO_MOD_QUATERNION] = "quaternion",
 	[IIO_MOD_TEMP_AMBIENT] = "ambient",
 	[IIO_MOD_TEMP_OBJECT] = "object",
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
index e4df3cc268db..92baabc103ac 100644
--- a/include/uapi/linux/iio/types.h
+++ b/include/uapi/linux/iio/types.h
@@ -86,6 +86,7 @@ enum iio_modifier {
 	IIO_MOD_CO2,
 	IIO_MOD_VOC,
 	IIO_MOD_LIGHT_UV,
+	IIO_MOD_LIGHT_DUV,
 };
 
 enum iio_event_type {
diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
index f478f5558720..ac2de6b7e89f 100644
--- a/tools/iio/iio_event_monitor.c
+++ b/tools/iio/iio_event_monitor.c
@@ -98,6 +98,7 @@ static const char * const iio_modifier_names[] = {
 	[IIO_MOD_LIGHT_GREEN] = "green",
 	[IIO_MOD_LIGHT_BLUE] = "blue",
 	[IIO_MOD_LIGHT_UV] = "uv",
+	[IIO_MOD_LIGHT_DUV] = "duv",
 	[IIO_MOD_QUATERNION] = "quaternion",
 	[IIO_MOD_TEMP_AMBIENT] = "ambient",
 	[IIO_MOD_TEMP_OBJECT] = "object",
@@ -182,6 +183,7 @@ static bool event_is_known(struct iio_event_data *event)
 	case IIO_MOD_LIGHT_GREEN:
 	case IIO_MOD_LIGHT_BLUE:
 	case IIO_MOD_LIGHT_UV:
+	case IIO_MOD_LIGHT_DUV:
 	case IIO_MOD_QUATERNION:
 	case IIO_MOD_TEMP_AMBIENT:
 	case IIO_MOD_TEMP_OBJECT: