Yocto Tutorial - 31 Kernel Development | Device Driver Integration in Mainline Kernel (Part 3)

In the third part of Device Driver Integration series, we'll take you through the practical steps of integrating and testing your custom device driver within the mainline Linux kernel. Let's explore each key stage:

10) Create Patch Using Git: Learn how to create a Git patch for your custom driver, an essential step in the integration process.

11) Copy Patch to Kernel Recipe Folder: We'll show you how to copy the patch to the kernel recipe folder, ensuring it's in the right place for integration.

12) Add Patch in Kernel bbappend File: Discover how to add the patch to the kernel's bbappend file, making it part of your Yocto project.

13) Check Driver Entry in Menuconfig: We'll guide you on how to locate and verify your driver entry in Menuconfig, ensuring it's ready for configuration.

14) Enable Driver in Menuconfig: Learn how to enable your custom driver in Menuconfig, a pivotal step in making it a part of your kernel configuration.

15) Save Menuconfig: We'll cover the process of saving your Menuconfig settings, ensuring your driver's configuration is preserved.

16) Build the Whole Image: Understand how to initiate the build process for the entire image, including your newly integrated driver.

17) Test Kernel via Dmesg: Finally, we'll demonstrate how to test your integrated kernel via Dmesg, confirming the successful integration of your custom device driver.