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
- dd
- lspci
- biosdecode
- dmidecode
