An Introduction to Device Drivers

• The Role of the Device Driver
• Splitting the Kernel
• Classes of Devices and Modules
• Version Numbering
• License Terms
• Joining the Kernel Development Community

Building and Running Modules

• Setting Up Your Test System
• The Hello World Module
• Kernel Modules Versus Applications
• Compiling and Loading
• The Kernel Symbol Table
• Module Parameters

Char Drivers

• The Design of scull
• Major and Minor Numbers
• Some Important Data Structures
• Char Device Registration
• open and release
• scull's Memory Usage
• read and write
• Playing with the New Devices

Concurrency and Race Conditions

• Pitfalls in scull
• Concurrency and Its Management
• Semaphores and Mutexes
• Completions
• Spinlocks

Advanced Char Driver Operations

• ioctl
• Blocking I/O
• poll and select
• Asynchronous Notification
• Seeking a Device
• Access Control on a Device File

Time, Delays, and Deferred Work

• Measuring Time Lapses
• Knowing the Current Time
• Delaying Execution
• Kernel Timers
• Tasklets
• Work queues

Communicating with Hardware

• I/O Ports and I/O Memory
• Using I/O Ports
• An I/O Port Example
• Using I/O Memory

Interrupt Handling

• Installing an Interrupt Handler
• Implementing a Handler
• Top and Bottom Halves
• Interrupt Sharing
• Interrupt-Driven I/O

A parallel port driver

• Preparing your System
• Setting up Parallel I/O in your module
• Interrupt Handler

Project

• Project 1: Led Blinking using PC parallel port interface
• Project 2: 16*2 alphanumerical LCD display system using PC parallel port interface
• Project 3: 14 segment display using PC parallel port interface
• Project 4: Stepper Motor control using PC parallel port interface