I have a problem with a cross-compiled kernel driver.

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Last week, some readers encountered a known error code when cross-compiling kernel drivers. This issue can occur due to several factors. We will review them below. Yes, compiling the kernel usually means downloading the source code. The ability to change the source code (most non-programmers usually can’t). Kernel configuration (which features/modules/drivers should be enabled, etc.) Compilation.

Remove Base Build Configuration

First you need to build the extreme main body,and then build a course on the main. But in order to compile the kernel, we need the exact build configuration of a running Linux system. Luckily, you will probably get a copy of the system that connects. Check out these places:

How do I cross compile a kernel module?

These facts will allow you to compile a working kernel loadable module (LKM; also known as a package driver) for an ARM Linux system.

Changing The Linux Kernel Configuration

The Linux kernel configuration option that one wants to change can be used when an external Linux kernel module is out of the tree (za GPU-Kernel driver startup) , and then they are actually recompiled. By definition, these modules are built outside of the kernel tree and are not part of the developer package code. source code, they cannot be recompiled with the developer’s package. If the Linux kernel is reconfigured but also recompiled with this option and then deployed to a forum thread, out-of-tree Linux kernel plugins may no longer be loaded.

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Configure Cross Compilation

There are probably two main variables that the type of kernel you’re using chooses for the target architecture. Normally these values are guessed based on this build environment, but of course this location doesn’t match our pasted target system, so we have toRecord the entire group. We are talking about ARCH variables and just CROSS_COMPILE. The default values for both were found in the top-level makefile, and any values for either can be overridden on the command line.

Compiling A Kernel Module For A Platform

With a different makefile, (hopefully) your whole family will be able to cross-compile the module using the ARCH and CROSS_COMPILE options from make. ARCH asks for the platform name and CROSS_COMPILE for the toolbox path. For example: