Linux Device Drivers – Communicating with Hardware-0daytown

Linux Kernel Programming for IO Mapped and Memory Mapped devices

What you’ll learn:
IO Mapped IO
Memory Mapped IO
PCI
Kernel Modules for Keyboard and RTC

Requirements
Should be able to write/compile/load/unload Hello World Linux Kernel Modules

Description
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

lspci

biosdecode

dmidecode

Who this course is for
Kernel developers curious about learning how to communicate with hardware

Linux Device Drivers - Communicating with Hardware

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Linux Device Drivers – Communicating with Hardware