This patch adds channel type for expressing particle number
concentration.
Signed-off-by: Tomasz Duszynski <[email protected]>
---
Documentation/ABI/testing/sysfs-bus-iio | 7 +++++++
drivers/iio/industrialio-core.c | 1 +
include/uapi/linux/iio/types.h | 1 +
3 files changed, 9 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-bus-iio
b/Documentation/ABI/testing/sysfs-bus-iio
index 530809ccfacf..481771e585ee 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -1608,3 +1608,10 @@ Description:
provides an absolute positional reference (e.g. a pulse once per
revolution) which may be used to home positional systems as
required.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_numberconcentration_input
+KernelVersion: 4.12
+Contact: [email protected]
+Description:
+ Reading of particulates number in a volume of a mixture.
+ Unit is in 1/m3.
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index d18ded45bedd..451e3bb8d623 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -85,6 +85,7 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_COUNT] = "count",
[IIO_INDEX] = "index",
[IIO_GRAVITY] = "gravity",
+ [IIO_NUMBERCONCENTRATION] = "numberconcentration",
};
static const char * const iio_modifier_names[] = {
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
index ffafd6c25a48..52696e251c4d 100644
--- a/include/uapi/linux/iio/types.h
+++ b/include/uapi/linux/iio/types.h
@@ -43,6 +43,7 @@ enum iio_chan_type {
IIO_COUNT,
IIO_INDEX,
IIO_GRAVITY,
+ IIO_NUMBERCONCENTRATION,
};
enum iio_modifier {
--
2.11.1
