Using SetupDixxx to enumerate all+present devices and get device path

NTDEV
1

Hi,

I want to enumerate all present devices irrespective of their GUID. Hence I used SetupDiEnumDeviceInfo().
It works except that device path can only be retrieved via
SetupDiGetDeviceInterfaceDetail < needs PSP_DEVICE_INTERFACE_DATA < needs calling SetupDiEnumDeviceInterfaces () < needs device Interface Class GUID.

I don’t want only one type of devices. Rather I have USB hubs and then some serial USB devices. I want to walk through all the devices and get their details. Is it possible via SetupDiEnumDeviceInfo. I am ble to do it except for the Device Path/Device Instance Id.

The other way that seems possible is that I separately enumerate all types of USB (HUB, HOST CONTROLLER, DEVICE) and SERIAL devices and later correlate them using DevInst.

Please suggest shortest path.

Thanks

2

You want to use the CM_Xxxx APIs then. They allow you to walk the tree.

d

-----Original Message-----
From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com] On Behalf Of xxxxx@gmail.com
Sent: Saturday, August 8, 2015 6:39 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] Using SetupDixxx to enumerate all+present devices and get device path

Hi,

I want to enumerate all present devices irrespective of their GUID. Hence I used SetupDiEnumDeviceInfo().
It works except that device path can only be retrieved via SetupDiGetDeviceInterfaceDetail < needs PSP_DEVICE_INTERFACE_DATA < needs calling SetupDiEnumDeviceInterfaces () < needs device Interface Class GUID.

I don’t want only one type of devices. Rather I have USB hubs and then some serial USB devices. I want to walk through all the devices and get their details. Is it possible via SetupDiEnumDeviceInfo. I am ble to do it except for the Device Path/Device Instance Id.

The other way that seems possible is that I separately enumerate all types of USB (HUB, HOST CONTROLLER, DEVICE) and SERIAL devices and later correlate them using DevInst.

Please suggest shortest path.

Thanks

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3

Thanks CM_ API works :slight_smile: