1. Home
  2. Embedded Programming
  3. detecting memory-mapped i/o peripheral in OS

detecting memory-mapped i/o peripheral in OS

hi all,

can any explain function of bootloader, and how linux or other OS detects the external pheripherals on an x86 processor(80486).

  1. which will create GDT,LDT,IDT in system linux or BIOS or boot loader.

  1. if added new peripheral which is memory mapped in to the system address space(memory-mapped i/o) :

how can i see the pheripheral in linux or other os, for this do i need to edit any GDT, LDT or IDT in boot loader, or OS will do this job.

  1. can any suggest me the book which explians porting concepts fully, so, that i can able to port linux or other OS on my custom hardware which has variety of pheripherals memory mapped or io mapped.

thanx in advance..

Bhanu prakash

Reply to
banu
Loading thread data ...

Umm, the best way is to download the source to Linux and look at the code. I would suggest getting a Linux Internals book like "Understanding the Linux Kernel" from O'Reilly. It explains the Linux 2.4 kernel from the point of view of an x86 system.

Reply to
Gary Kato

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.