[PATCH v6 2/5] hwmon: (core) Add support for humidity min/max alarm

Javier Carrasco
2024-01-30T21:06:54Z

Add min_alarm and max_alarm attributes for humidityX to support devices
that can generate these alarms.
Such attributes already exist for other magnitudes such as tempX.

Tested with a ChipCap 2 temperature-humidity sensor.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
---
drivers/hwmon/hwmon.c | 2 ++
include/linux/hwmon.h | 4 ++++
2 files changed, 6 insertions(+)

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index c7dd3f5b2bd5..b51d13f08d27 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -586,6 +586,8 @@ static const char * const hwmon_humidity_attr_templates[] = {
[hwmon_humidity_fault] = "humidity%d_fault",
[hwmon_humidity_rated_min] = "humidity%d_rated_min",
[hwmon_humidity_rated_max] = "humidity%d_rated_max",
+ [hwmon_humidity_min_alarm] = "humidity%d_min_alarm",
+ [hwmon_humidity_max_alarm] = "humidity%d_max_alarm",
};

static const char * const hwmon_fan_attr_templates[] = {
diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index 8cd6a6b33593..f553f8cd6946 100644
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -293,6 +293,8 @@ enum hwmon_humidity_attributes {
hwmon_humidity_fault,
hwmon_humidity_rated_min,
hwmon_humidity_rated_max,
+ hwmon_humidity_min_alarm,
+ hwmon_humidity_max_alarm,
};

#define HWMON_H_ENABLE BIT(hwmon_humidity_enable)
@@ -306,6 +308,8 @@ enum hwmon_humidity_attributes {
#define HWMON_H_FAULT BIT(hwmon_humidity_fault)
#define HWMON_H_RATED_MIN BIT(hwmon_humidity_rated_min)
#define HWMON_H_RATED_MAX BIT(hwmon_humidity_rated_max)
+#define HWMON_H_MIN_ALARM BIT(hwmon_humidity_min_alarm)
+#define HWMON_H_MAX_ALARM BIT(hwmon_humidity_max_alarm)

enum hwmon_fan_attributes {
hwmon_fan_enable,

--
2.39.2