[OpenWrt-Devel] how to add/package kernel module?

[John Crispin]

On 27/07/18 17:26, Torbjorn Jansson wrote:
> Hello.
>
> Probably over a year ago i built a rasperry pi and made a custom build 
> of openwrt and added a small patch for myself to make module for htu21 
> temp and humidity sensor available.
>
> the patch i made i'm not sure if it is correct or not and even if it 
> still works with all the changes that has been done but it would be 
> nice to have the kernel module (kmod-iio-htu21) built and available as 
> an option preferably in some future release.
>
> i use the htu21 kernel module with a small shell script to push the 
> data out to an mqtt server for further handling.
> there is probably more iio modules that could be useful to others but 
> for now i'm happy if i can make a new version of openwrt with the 
> kernel module added and preferably also get it included so i don't 
> need a custom build.
>
>
> below is my old patch.
>

Patch looks ok at first glance, but there are a few formal errors, the 
Signed-off-by is missing and the patch headline needs to be prefixed and 
a proper description needs to be written -> 
https://openwrt.org/submitting-patches

     John

>
> diff --git a/package/kernel/linux/modules/other.mk 
> b/package/kernel/linux/modules/other.mk
> index 38b98f3..3770510 100644
> --- a/package/kernel/linux/modules/other.mk
> +++ b/package/kernel/linux/modules/other.mk
> @@ -329,6 +329,29 @@ endef
>  $(eval $(call KernelPackage,iio-dht11))
>
>
> +define KernelPackage/iio-htu21
> +  SUBMENU:=$(OTHER_MENU)
> +  DEPENDS:=kmod-i2c-core kmod-iio-core
> +  TITLE:=Measurement Specialties HTU21 humidity & temperature sensor
> +  KCONFIG:= \
> +   CONFIG_HTU21 \
> +   CONFIG_IIO_MS_SENSORS_I2C
> +  FILES:= \
> +   $(LINUX_DIR)/drivers/iio/humidity/htu21.ko \
> +   $(LINUX_DIR)/drivers/iio/common/ms_sensors/ms_sensors_i2c.ko
> +  AUTOLOAD:=$(call AutoLoad,56,htu21)
> +endef
> +
> +define KernelPackage/iio-htu21/description
> + support for the Measurement Specialties HTU21 humidity and
> + temperature sensor.
> + This driver is also used for MS8607 temperature, pressure & humidity
> + sensor
> +endef
> +
> +$(eval $(call KernelPackage,iio-htu21))
> +
> +
>  define KernelPackage/lp
>    SUBMENU:=$(OTHER_MENU)
>    TITLE:=Parallel port and line printer support
>
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> openwrt-devel at lists.openwrt.org
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