[SOLVED] Help in reading pci config space

shankar.489 · 02-08-2011, 05:17 AM

HI Folks,

greetings, iam vijay shankar working in some corporate company as a part of my work in need some help reg:
1. Acessing PCI config space in Linux(Using system calls)
2. How to interacted controller in a pci device( say vide controller)

please help me how read using system calls

i Know using "lspci" command we can read but i want system call which use BDF(bus,device,fun) to read a device or any other calls which we can use directly in programming

thanks for your time on this

Regards
shankar

prodev05 · 02-08-2011, 06:02 AM

Are you trying any programming on Linux System Internals?

shankar.489 · 02-08-2011, 11:38 PM

Yes, iam in urgent need of those system calls

Aquarius_Girl · 02-08-2011, 11:47 PM

Quote:

Originally Posted by shankar.489

Acessing PCI config space in Linux(Using system calls)

This might help: http://www.gnugeneration.com/books/l...20/kernel-api/

prodev05 · 02-09-2011, 02:23 AM

Quote:

Originally Posted by shankar.489

Yes, iam in urgent need of those system calls

I believe in Post#4 the link which is mentioned would be helpful to you.

Such a wonderful link

. Worth exploring it.

shankar.489 · 02-10-2011, 12:09 AM

HI kaul,
thank you very much Kaul
i will go through those API`s, i guess this may solve my problem

regards
shankar

shankar.489 · 02-10-2011, 02:29 AM

can anybody help me which API i have to use in order to enumerate all pci devices?

Aquarius_Girl · 02-10-2011, 03:02 AM

Quote:

Originally Posted by shankar.489

can anybody help me which API i have to use in order to enumerate all pci devices?

Do you mean to say that you looked up that link and couldn't find ANY function for PCI support?
You have to show what have you tried from that link and failed!

shankar.489 · 02-10-2011, 11:33 PM

HI kaul,

well you wrongly understand my words.

what i mean to say is, Currently iam very busy in my schedule and i don't have time go through all pci related commads/syscalls.I Hope you understood my position.

the link what you sent is really helpful to me @ this time and future also..!!

but i want know only about which API`s to use to enumerate all PCI devices.

Thanks dude....

regards,
Shankar.

Aquarius_Girl · 02-11-2011, 01:03 AM

Quote:

Originally Posted by shankar.489

what i mean to say is, Currently iam very busy in my schedule and i don't have time go through all pci related commads/syscalls.I Hope you understood my position.

So because YOU are too busy, you want US to spend our time to search that link by the keyword "PCI" on your behalf???

I AM NOT GOING TO DO THAT, thank you.

shankar.489 · 02-13-2011, 11:06 PM

Hi kaul,

i will take care of my things further, Thanks for your reply