linux-kernel - [PATCH v2 2/4] iio: core: Add IIO_EV_INFO

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Message-ID: <20260201183320.27023-3-0rayn.dev@gmail.com>
Date: Sun,  1 Feb 2026 13:33:11 -0500
From: Taha Ed-Dafili <0rayn.dev@...il.com>
To: jic23@...nel.org
Cc: me@...ghamcampbell.com,
	skhan@...uxfoundation.org,
	linux-kernel-mentees-archive@...ts.linuxfoundation.org,
	rdunlap@...radead.org,
	dlechner@...libre.com,
	nuno.sa@...log.com,
	andy@...nel.org,
	corbet@....net,
	lars@...afoo.de,
	Michael.Hennerich@...log.com,
	linux-iio@...r.kernel.org,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Taha Ed-Dafili <0rayn.dev@...il.com>
Subject: [PATCH v2 2/4] iio: core: Add IIO_EV_INFO_SCALE to event info

While implementing event scaling for the ADXL345 to match
the IIO ABI documentation, I noticed that IIO_EV_INFO_SCALE
was missing from the internal enum iio_event_info.

Add the constant and the "scale" sysfs string
to allow drivers to expose these attributes correctly.

Signed-off-by: Taha Ed-Dafili <0rayn.dev@...il.com>
---
 drivers/iio/industrialio-event.c | 1 +
 include/linux/iio/types.h        | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 06295cfc2da8..5096baf233f0 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -256,6 +256,7 @@ static const char * const iio_ev_info_text[] = {
 	[IIO_EV_INFO_TAP2_MIN_DELAY] = "tap2_min_delay",
 	[IIO_EV_INFO_RUNNING_PERIOD] = "runningperiod",
 	[IIO_EV_INFO_RUNNING_COUNT] = "runningcount",
+	[IIO_EV_INFO_SCALE] = "scale",
 };
 
 static enum iio_event_direction iio_ev_attr_dir(struct iio_dev_attr *attr)
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 34eebad12d2c..4e3099defc1d 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -21,6 +21,7 @@ enum iio_event_info {
 	IIO_EV_INFO_TAP2_MIN_DELAY,
 	IIO_EV_INFO_RUNNING_PERIOD,
 	IIO_EV_INFO_RUNNING_COUNT,
+	IIO_EV_INFO_SCALE,
 };
 
 #define IIO_VAL_INT 1
-- 
2.47.3