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Commit 091a121b authored by Harald Geyer's avatar Harald Geyer Committed by Jonathan Cameron
Browse files

iio: Add new driver dht11 



This driver handles DHT11 and DHT22 sensors.

Signed-off-by: default avatarHarald Geyer <harald@ccbib.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent ac216aa2

Documentation/devicetree/bindings/iio/humidity/dht11.txt

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* DHT11 humidity/temperature sensor (and compatibles like DHT22)



Required properties:

  - compatible: Should be "dht11"

  - gpios: Should specify the GPIO connected to the sensor's data

    line, see "gpios property" in

    Documentation/devicetree/bindings/gpio/gpio.txt.



Example:



humidity_sensor {

	compatible = "dht11";

	gpios = <&gpio0 6 0>;

}

drivers/iio/Kconfig

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@@ -65,6 +65,7 @@ source "drivers/iio/common/Kconfig" 
source "drivers/iio/dac/Kconfig"

source "drivers/iio/frequency/Kconfig"

source "drivers/iio/gyro/Kconfig"

source "drivers/iio/humidity/Kconfig"

source "drivers/iio/imu/Kconfig"

source "drivers/iio/light/Kconfig"

source "drivers/iio/magnetometer/Kconfig"

drivers/iio/Makefile

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@@ -18,6 +18,7 @@ obj-y += common/ 
obj-y += dac/

obj-y += gyro/

obj-y += frequency/

obj-y += humidity/

obj-y += imu/

obj-y += light/

obj-y += magnetometer/

drivers/iio/humidity/Kconfig

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#

# humidity sensor drivers

#

menu "Humidity sensors"



config DHT11

	tristate "DHT11 (and compatible sensors) driver"

	depends on GPIOLIB

	help

	  This driver supports reading data via a single interrupt

	  generating GPIO line. Currently tested are DHT11 and DHT22.

	  Other sensors should work as well as long as they speak the

	  same protocol.



endmenu

drivers/iio/humidity/Makefile

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#

# Makefile for IIO humidity sensor drivers

#



obj-$(CONFIG_DHT11) += dht11.o