Bios functions access

Posted on 2000-04-25
Medium Priority
Last Modified: 2010-04-22
Is is possible to access to bios interupt with linux
such as int 13h ?

If it's possible, how can I do ?
Question by:vdaanen
  • 2

Expert Comment

ID: 2747938
No. That's the sort of things the kernel was made to prevent a normal program from -- would be a big security problem otherwise. You will have to use the functionality of the Linux system calls.

Expert Comment

ID: 2749820
actually, the bigger problem is that Linux is a true 32-bit operating system, and the BIOS is 16-bit code.

Most modern operating systems just provide their own ways of doing functionality the BIOS provides, because the call into the BIOS would be very expensive (read slow).

A good question for you then, is what exactly are you trying to accomplish with the BIOS function?  There is bound to be a easier/better way of doing the required functionality that will probally be more portable across different versions of Linux/Unix.

good luck,

Accepted Solution

misguided earned 40 total points
ID: 2785292
  if u want to be able to to access bios function calls like in DOS...well..ehhehe..u have to do some kernel programming..u can't do that as what fremsley says..the kernel prevents u from doing that..but u can modify the kernel ..:) u know like kernel hacking..and it is possible..but if u don't have access to the kernel..mmmm..that would be quite impossible..ur used to MS-DOS ..:) well that is easy right..but in LInux ..hehehe...u can't....for more info...look for Kernel programming info on the web..:) happy hacking..

Expert Comment

ID: 2785295
btw..u could make the kernel do it on behalf of u..:)

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