Linux Device drivers-debugging proc

In the fourth chapter of the book "Linux device Drivers", we specialize in the debugging technology in driver development.

PRINTK is just one of the techniques that requires PRINTK to print messages and write to files on disk, which slows down the entire code execution speed.

There are also debugging techniques, and the effect on Code execution speed is smaller than prink.

In this, we can have the driver create the file in the proc file system and write the required debugging information into the file.

The Linux kernel provides APIs to interact with the proc file system, such as creating files and writing files.

Linux Device drivers-debugging proc