kernelnewbies.kernelnewbies.org archive mirror
 help / color / mirror / Atom feed
From: manohar.vanga@gmail.com (Manohar Vanga)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Faking PCI devices?
Date: Wed, 4 May 2011 11:39:20 +0200	[thread overview]
Message-ID: <BANLkTikFCqqNO9G-6w2Yck0CEbNQ0eF-YQ@mail.gmail.com> (raw)

Hi,

I have written a simulated driver for a PCI board and am looking for a clean
way to use the driver. Currently, I am setting the PCI ids to PCI_ANY_ID and
only allowing a single probe call to go through using a global variable
(concurrency issues but I don't care for the simulation).

static int n
...
static int fake_board_probe(struct pci_dev *pdev, const struct pci_device_id
*ent)
{
    if (n == 1)
        return -1;
    n = 1;
    ...
}
static int fake_board_init(void)
{
    n = 0;
    ....
}

I want to do a cleaner job of this and wanted to write a PCI bridge driver
that actually registers the devices with the correct IDs that I need. This
also gives me the advantage of being able to register multiple devices which
is a useful for the simulation I am working on.
Can anyone point me in the right direction for this? Most of the code (eg.
struct pci_controller) seem to be architecture specific.

The code is available for anyone interested at:
https://github.com/mvanga/wbonesim

Thanks and best regards.
-- 
/manohar
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20110504/5597d168/attachment.html 

             reply	other threads:[~2011-05-04  9:39 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-04  9:39 Manohar Vanga [this message]
2011-05-04 14:55 ` Faking PCI devices? Greg KH

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=BANLkTikFCqqNO9G-6w2Yck0CEbNQ0eF-YQ@mail.gmail.com \
    --to=manohar.vanga@gmail.com \
    --cc=kernelnewbies@lists.kernelnewbies.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).