Linux->Nasm->Flush ports

[yousafsajjad]

Hi,

I am using the following code to flush port:

 in      al, 081h
 out     081h, al     

but it is giving me segmentation fault. Does anyone how I can do it.

[Frank Kotler]

Try sys_ioperm (101?) first. You'll need root permissions to do this. To give your program root permissions, without the "user" having to be root... As root:

Code: [Select]

chown root:root myprog
chmod +s myprog

I'm not sure what your proposed code is going to do for you, but I think you'll be able to do it without segfault if you do sys_ioperm first...

Best,
Frank

[yousafsajjad]

you are very right. Thanks for your help.