added my Recipes

meta-st/meta-st-openstlinux/recipes-samples/demo/sensors-iks01a2/README.txt

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+How to deploy demonstration:
+----------------------------
+Materials:
+ * Nucleo extension board with mems, here IKS01A2
+ * connection between extension board and stm32mp15 board.
+
+Pre-requisite:
+--------------
+1. Kernel:
+ You need to configure the kernel to support the Nucleo extension
+ board with the devitree configuration and the kernel configuration.
+
+1.1 DeviceTree:
+ * Enable the sensor on I2C
+   For Discovery board (stm32mp157c-dk2), the sensors are linked on ic25.
+   Add the following line on your devicetree associateds to the board
+
+&i2c5 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&i2c5_pins_a>;
+	pinctrl-1 = <&i2c5_pins_sleep_a>;
+	i2c-scl-rising-time-ns = <124>;
+	i2c-scl-falling-time-ns = <3>;
+	/delete-property/dmas;
+	/delete-property/dma-names;
+
+	status = "okay";
+
+	hts221@5f {
+		compatible = "st,hts221";
+		reg = <0x5f>;
+	};
+	lsm6dsl@6b {
+		compatible = "st,lsm6dsl";
+		reg = <0x6b>;
+	};
+};
+
+NOTE: the i2c depend of the pin-muxing of the board and could be different of
+ i2c5.
+
+1.2 Kernel configuration:
+ Add the following config on your kernel configuraturation
+ (best way are via a new fragment)
+CONFIG_IIO_BUFFER=y
+CONFIG_IIO_KFIFO_BUF=y
+CONFIG_IIO_TRIGGERED_BUFFER=y
+CONFIG_HTS221=y
+CONFIG_IIO_ST_PRESS=y
+CONFIG_IIO_ST_LSM6DSX=y
+CONFIG_IIO_ST_LSM6DSX_I2C=y
+
+2. Software
+ You need to have some framework available on the board for executing the
+ python script:
+
+List of packages already present on st-example-image-weston:
+ weston
+ gtk+3
+ python3 and several python3 addons
+
+Execution of script on board:
+-----------------------------
+Files:
+/usr/local/demo/
+/usr/local/demo/sensors_temperature.py
+
+Put the files on board and launch the python script:
+  BOARD > /usr/local/demo/sensors_temperature.py
+
+To quit the application, just click on ST logo.