How to add a driver module as a Buildroot?

How to add a driver module as a Buildroot?

Now I want to add a driver, written in C, which can be used by a user program to write to some specific registers, enabling it to control some LEDs. When I checked the manual, it basically says the first thing to do is create a Config.in in a new package folder, where you write some text explaining the driver. Okay, I did that.

What are the files in the boot directory in Buildroot?

The linux/ directory contains the Makefiles and associated files for the Linux kernel. The boot/ directory contains the Makefiles and associated files for the bootloaders supported by Buildroot. The system/ directory contains support for system integration, e.g. the target filesystem skeleton and the selection of an init system.

What should the custom version be in Buildroot?

For example, set BR2_LINUX_KERNEL_CUSTOM_VERSION=y and BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE to the kernel version you tested with. It is recommended to use as much as possible upstream versions of the Linux kernel and bootloaders, and to use as much as possible default kernel and bootloader configurations.

Can you add support for other boards to Buildroot?

You are welcome to add support for other boards to Buildroot too. To do so, you need to create a normal Buildroot configuration that builds a basic system for the hardware: (internal) toolchain, kernel, bootloader, filesystem and a simple BusyBox-only userspace.

Which is version of Buildroot are you using?

It is not clear from your question if you’re using the command line, a custom Makefile, or a Buildroot package (which version of Buildroot are you using). Your command line is building a C object .o not a kernel module ( .o was the extension for kernel modules till the version 2.4, from 2.6 it is .ko)

How is Buildroot used to make embedded Linux easy?

Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. Cross-compilation toolchain, root filesystem generation, kernel image compilation and bootloader compilation.