Re: searching for pci busses

[Jiri Slaby <jirislaby@gmail.com>]

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Jon Smirl napsal(a):
> On 5/30/06, Greg KH <gregkh@suse.de> wrote:
>> On Mon, May 29, 2006 at 05:59:39PM -0400, Jeff Garzik wrote:
>> > Greg KH wrote:
>> > >On Sun, May 28, 2006 at 01:12:26AM +0159, Jiri Slaby wrote:
>> > >>Hello,
>> > >>
>> > >>I want to ask, if there is any function to call (as we debated with
>> > >>Jeff), which
>> > >>does something like this:
>> > >>1) I have some vendor/device ids in table
>> > >>2) I want to traverse raws of the table and compare to system
>> devices,
>> > >>and if
>> > >>found, stop and return pci_dev struct (or raw in the table).
>> > >
>> > >What's wrong with pci_match_id()?
>> > >
>> > >Or just using the pci_register_driver() function properly, which
>> handles
>> > >all of this logic for you?
>> >
>> > These aren't PCI devices proper.  These are embedded non-PCI devices,
>> > which must search for an unrelated PCI device to figure out what
>> type of
>> > platform they are on.
>>
>> Ok, then use pci_match_id() or pci_get_device().
> 
> This is how DRM does it...
> 
>        for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) {
>                pid = (struct pci_device_id
> *)&driver->pci_driver.id_table[i];
> 
>                pdev = NULL;
>                /* pass back in pdev to account for multiple identical
> cards */
>                while ((pdev =
>                        pci_get_subsys(pid->vendor, pid->device,
> pid->subvendor,
>                                       pid->subdevice, pdev)) != NULL) {
>                        /* stealth mode requires a manual probe */
>                        pci_dev_get(pdev);
>                        drm_get_dev(pdev, pid, driver);
>                }
>        }
>        return 0;
> 
> 
It's similar to code in my root post, so thanks for replies, it's maybe the best
way.

thanks,
- --
Jiri Slaby         www.fi.muni.cz/~xslaby
~\-/~      jirislaby@gmail.com      ~\-/~
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