You can’t. There is no supported interface to do this, that I know of. A
bus filter driver, that is one that filtered the PDOs, would be about the
only way.
–
Bill McKenzie
Windows DDK MVP
OSR - Windows System Software Development, Training, and Consulting
“Moreira, Alberto” wrote in message
news:xxxxx@ntdev…
>
> Out of ignorance, or maybe laziness, a question: how can I use this
> GetBusData interface to enumerate all devices on a PCI bus ?
>
> Alberto.
>
>
> -----Original Message-----
> From: Bill McKenzie [mailto:xxxxx@osr.com]
> Sent: Wednesday, July 31, 2002 12:31 PM
> To: NT Developers Interest List
> Subject: [ntdev] Re: How to get to PCI Configuration Space Info in
> DriverEntry for WDM
>
>
> For getting the PCI info you desire from your device:
>
> http://support.microsoft.com/default.aspx?ID=KB;EN-US;Q253232&
>
> As far as using HAL functions for PCI config info, as I understand it,
they
> do not work correctly, (i.e. the slot info and such that you get back may
be
> incorrect). I would not use these functions.
>
> –
> Bill McKenzie
> Windows DDK MVP
> OSR - Windows System Software Development, Training, and Consulting
>
>
> “Fisher, Barry” wrote in message
> news:xxxxx@ntdev…
> >
> > Hi all:
> > Been away from WDM for a bit and need some refreshing. Please bear with
> me.
> > In general…How does one get the pci configuration space information of
> > one’s device in DriverEntry. Do you use
> > IRP_MN_READ_CONFIG/IRP_MN_WRITE_CONFIG?
> > I have seen a sample of code in the DDK that initializes an IRP, uses
> > IOGetAttachedDeviceReference (routine takes a DeviceObject as argument
to
> > obtain a ‘targetObject’) and the issues the irp to this targetObject to
> > config info. If I create a DeviceObject in DriverEntry and then make
this
> > call, will I obtain the correct config space information? Does this
method
> > work across Win2000, WinXP, and Win98???
> >
> > Is there any OS supported way to enumerate the pci bus(ala
HalGetBusData)
> in
> > DriverEntry?
> >
> > Thanks for any information and suggestions.
> > -Barry
> >
> >
> >
>
>
>
> —
> You are currently subscribed to ntdev as: xxxxx@compuware.com
> To unsubscribe send a blank email to %%email.unsub%%
>
>
>
> The contents of this e-mail are intended for the named addressee only. It
> contains information that may be confidential. Unless you are the named
> addressee or an authorized designee, you may not copy or use it, or
disclose
> it to anyone else. If you received it in error please notify us
immediately
> and then destroy it.
>
>
>
>