Linux Kernel headers for STM32MP157(openstlinux-weston)

[Kanthan]

I am trying to get started on Linux kernel development on STM32MP157F-DK2 board. Thus far I have been able to,

1. Flash the started package and get Linux booting successfully

2. Download the developer package, add extra logs and update the linux kernel on the board

I am trying to get started on kernel drivers and was not able to find linux headers in the sdk include path. I am getting linux/init.h as not found.

I tried to update the include path by adding the headers from the linux source code from the developer package but am facing a lot of include errors. I tried looking for a way to download the linux headers for the openst linux image online but wasn't able to find any so far.

I have the following queries,

1. Can someone provide a way to download the linux headers for cross compilation?

2. If possible can someone share a simple wiki/example of a custom kernel module/driver on the openstlinux.

Thanks in advance.

[Jean-Christophe_TROTIN]

Hi @Kanthan,

I could suggest that you have a look at the STM32 MPU wiki (https://wiki.st.com/stm32mpu/wiki/Main_Page).

 The following articles might be interesting for you:

* https://wiki.st.com/stm32mpu/wiki/STM32MPU_Developer_Package: this article gives the step-by-step approach to download and install the OpenSTLinux components, and proposes some guidelines to upgrade (add, remove, configure, improve...) any piece of software.

* https://wiki.st.com/stm32mpu/wiki/How_to_cross-compile_with_the_Developer_Package: this article provides simple examples for the Developer Package of the OpenSTLinux distribution, that illustrate cross-compilation with the SDK (especially, the chapter “Modifying a built-in Linux kernel device driver” gives a very simple example that might help you).

Hope this information helps.

Regards,

JC.