Linux Device Drivers - Communicating with Hardware

Linux Kernel Programming for IO Mapped and Memory Mapped devices

4.30 (108 reviews)

Udemy

platform

English

language

Operating Systems

What you will learn

IO Mapped IO

Memory Mapped IO

PCI

Kernel Modules for Keyboard and RTC

Why take this course?

What you will learn in this course:

Two modes of communication with hardware - IO Mapped IO and Memory Mapped IO
Kernel Drivers/Modules for IO Mapped IO - Speaker, RTC, Keyboard
Kernel Drivers/Modules for Memory Mapped IO - Hardware Random Generator, GPIO, UART
Accessing IO Mapped IO and Memory Mapped IO from user space
PCI and SMBIOS

API's/Macros/Structures

inb, outb, inw, outw, inl, outl
inb_p, outb_p, inw_p, outw_p, inl_p, outl_p
struct resource, request_region, release_region
ioperm, iopl, geteuid
request_mem_region, release_mem_region, ioremap, iounmap, ioread8, ioread16, ioread32, iowrite8, iowrite16, iowrite32
ioport_map, ioport_unmap,mmap

Files:

/dev/port, /dev/mem, /proc/iomem, /proc/ioports

Commands

hwclock
date
showkey
hexdump
strings
dd
lspci
biosdecode
dmidecode

Reviews

Girish

September 25, 2022

Training materials and course contents are not matching. Difficult to verify things if we are opening directly for reference. Expected more details on PCI Express. Nowadays most of the things are PCI express. Please let me know if you are planning for any PCI express training

Vediyappan

February 28, 2022

Good. The explanations are little fast and felt like some videos are having dependencies on another and not getting continuity. May be hands-on would give better idea. Thanks!

Fabio

June 17, 2021

It has been interesting. I could learn with the information. Some knowledge that I already had, now it becomes more clear. However I feel a bit the accent of the author.

Rajesh

January 17, 2021

So far so good, but only request is have more details related "Device Driver programming" in general and throw more details on difference between Kernel Space Driver and User space driver.

November 18, 2020

It is to the point and easy to understand too. I have a feedback though. I think the instructor has to clear out his throat or speak loudly (sometimes he does that) so that it is more pleasing to listen to.

Nikolay

October 22, 2020

Excellent way to explain complicated things in simple terms. Structured, short topics. Very, very good!!! The only advice: try don't be hurry. Please keep source files opened on the screen a bit more time. We are not in real class, time is not so limited :)

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