Overview
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Learn the important facets of Linux device drivers—what they are, what each type can do, and how to compile, debug, and add functionality to your drivers.
Syllabus
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Introduction
- Explore Linux device drivers
- What you should know
- Describe the benefits of loadable modules
- Effectively use module commands
- Use and define module parameters
- Work with licensing and modules
- Challenge: Work with loadable modules
- Solution: Work with loadable modules
- Writing a loadable kernel module
- Build and load a loadable module
- Use printk() for tracing and debugging
- Use tracing and debugging
- Challenge: Write, trace, debug
- Solution: Write, trace, debug
- Create and use device files
- Implement character device driver file operations
- Write a character device driver
- Understand the user and kernel address spaces
- Challenge: Write a character driver
- Solution: Write a character driver
- Use block device files
- Describe the function of the block layer
- Implement block driver operations
- Handle the block request queue
- Challenge: Write a block driver
- Solution: Write a block driver
- Look at the role of network device drivers
- Examine the net_device_ops structure
- Examine PCI related API in network drivers
- Challenge: Using tools with a network driver
- Solution: Using tools with a network driver
- Learn more about Linux device drivers
