About Device Drivers

A driver drives, manages, controls, directs and monitors the entity under its command. What a bus driver does with a bus, a device driver does with a computer device (any piece of hardware connected to a computer) like a mouse, keyboard, monitor, hard disk, Web-camera, clock, and more.

Further, a “pilot” could be a person or even an automatic system monitored by a person (an auto-pilot system in airliners, for example). Similarly, a specific piece of hardware could be controlled by a piece of software (a device driver), or could be controlled by another hardware device, which in turn could be managed by a software device driver. In the latter case, such a controlling device is commonly called a device controller. This, being a device itself, often also needs a driver, which is commonly referred to as a bus driver.

General examples of device controllers include hard disk controllers, display controllers, and audio controllers that in turn manage devices connected to them. More technical examples would be an IDE controller, PCI controller, USB controller, SPI controller, I2C controller, etc.

Device Drivers Highlights

Course Duration

1 Month



Delivery Mode

Class Room Training

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Course Syllabus

Linux Driver Ecosystem
The Kernel 2.6 Source Organization
Driver Development Environment
2.Character Drivers
Major & Minor Numbers
Registering & Unregistering
Device Files & Device Classes
File Operations & its related Kernel Data Structures
Special Focus on open, release, read, write, ioctl
Memory Access in Kernel Space
3.Hardware Access Mechanisms
System Memory
Device Memory
I/O Ports
Kernel & Driver Debugging Options & Techniques
Ways to Deal with Concurrency
Time Keeping, Delays, and the Timers in Kernel
5.USB Drivers
USB Device Layout
USB Driver Layout
USB Core &Sysfs
USB Driver Registration
USB Device Hot-plug-ability
URB & its Operations
Special Focus on Control & Bulk Transfers
IRQs & their Registration
IRQ Handling & Control
Soft IRQs
Top & Bottom Halves
7.Block Drivers
Driver Registration
Disk Drive Registration
Block Device Operations & its related Kernel DS
Request Queues & their Processing
8.File System Modules
Virtual File System (VFS) Interfaces
VFS Internals
File System Registration & Operations
Super Block Operations
Inode Operations
Address Space Operations