Re: [ntdev] Detect the pci bus/bridge device

The key question for the OP is what is common between the devices that he wants to associate besides the fact that they are soldered onto the same board. If there is nothing common, then he needs help from UM, but if he can find something then he can do the detection in KM

Sent from Surface Pro

From: Mark Roddy
Sent: ‎Tuesday‎, ‎August‎ ‎11‎, ‎2015 ‎3‎:‎03‎ ‎PM
To: Windows System Software Devs Interest List

I think he wants to be able to know that device A on bus 2 and device B on bus 3 are both on bridge 1. If he really needs to do that he may have to build the actual bus topology from user mode.

Mark Roddy

On Tue, Aug 11, 2015 at 1:59 PM, wrote:

Hmmmm… As Mr. Roddy answered initially, I think IoGetDeviceProperty (or the KMDF alternative) is what you’re looking for.

Peter
OSR
@OSRDrivers


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