iio: hid: Add humidity sensor support
Environmental humidity sensor is a hid defined sensor,
it shows raw humidity measurement of air.
More information can be found in:
http://www.usb.org/developers/hidpage/HUTRR39b.pdf
According to IIO ABI definition, humidityrelative data output unit is
milli percent. Add the unit convert from percent to milli percent.
Signed-off-by: Song Hongyan <hongyan.song@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/humidity/Kconfig b/drivers/iio/humidity/Kconfig
index 912477d..14b9ce4 100644
--- a/drivers/iio/humidity/Kconfig
+++ b/drivers/iio/humidity/Kconfig
@@ -36,6 +36,20 @@
To compile this driver as a module, choose M here: the module
will be called hdc100x.
+config HID_SENSOR_HUMIDITY
+ tristate "HID Environmental humidity sensor"
+ depends on HID_SENSOR_HUB
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ select HID_SENSOR_IIO_COMMON
+ select HID_SENSOR_IIO_TRIGGER
+ help
+ Say yes here to build support for the HID SENSOR
+ humidity driver
+
+ To compile this driver as a module, choose M here: the module
+ will be called hid-sensor-humidity.
+
config HTS221
tristate "STMicroelectronics HTS221 sensor Driver"
depends on (I2C || SPI)