1. WinHEC 2015
8/30/2018 6:37 AM
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2. Win 10 Driver servicing & DCHU Update
WinHEC 2015
8/30/2018 6:37 AM
Win 10 Driver servicing & DCHU Update
Jim Pung
Program Manager
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

3. How many Windows 10 drivers on WU?
725,000
550,000
95,000

4. Challenges to Maintaining Quality
Permutations of drivers increasing with every new device
Drivers require servicing
Blue Screen, Performance, Security, Bug fixes
No single owner
OEM/ODM/IHV/ISV interdependencies
550,000
Drivers in WU

5. Driver model for easier servicing
WinHEC 2015
8/30/2018 6:37 AM
Driver model for easier servicing
Universal Driver Model: DCHU
Benefits
Declarative
INF only based install​
No Co-installers
Componentized
Base INF: Works on all silicon​
Extension INF: customizations targeted to specific hardware
Hardware Support Apps
Access system software via capabilities​
Version binding between driver & app
Universal APIs
Targets only OneCoreUAP API surface
Targets all Windows 10 Editions​
Clean install/uninstall of driver​
Reduces Base drivers fragmentation​
Provides agility for fixes​
Enhances OS reliability, Isolates impact​
Automatic App updates via Store​
Single driver across all Win 10 Editions​​
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

6. Componentized Drivers Structure
Base drivers
Core functionality
Single INF package
Generically targetable
Independently serviceable
Compatible with all extensions
Extension Drivers & Apps
Customized functionality
Separate INF package
Specifically targetable
App for all Windows Editions
Base Driver
Ext.
Drv.
Store
App

7. Componentized Drivers Publishing – 2 Scenarios
WinHEC 2015
8/30/2018 6:37 AM
Componentized Drivers Publishing – 2 Scenarios
Base driver (only)
Submission to Hardware Dev Center does not change
Base driver (with extensions)
Base is handled like the simple driver case
Each extension is submitted separately Two options for submission
IHV Provided Extension Template
OEM Created Extension
Base Driver
Ext.
Drv.
Store
App
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

8. Componentized Drivers Publishing - IHV Provided Extension Template
WinHEC 2015
8/30/2018 6:37 AM
Componentized Drivers Publishing - IHV Provided Extension Template
IHV Submission
Creates Extension Template
Certifies and submits the template extension
IHV Resell
Resells the extension to OEM
Never publishes the extension “template”
OEM Customization
Updates extension
Creates OEM specific extension ID
Adjusts Hardware targeting
OEM Publication
Publishes the extension
The Preferred Approach
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

9. Componentized Drivers Publishing - OEM Created Extension
WinHEC 2015
8/30/2018 6:37 AM
Componentized Drivers Publishing - OEM Created Extension
OEM Creation
Creates the extension
Targets Hardware
Utilizes Unique Extension Id
OEM Submission
Certifies and runs the HLK
Submits to dev center
OEM Publication
Publishes the extension
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

10. Componentized Drivers Publishing - Targeting & Ranking Differences
8/30/2018 6:37 AM
Componentized Drivers Publishing - Targeting & Ranking Differences
Driver
Targeting
Ranking
Base
Same as today
Extension
Requires 4-part HWID and/or CHID
Driver INF Date & Driver Version
Resources
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

11. Dev Center WinHEC 2015 8/30/2018 6:37 AM
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

12. Dev Center Driver Publishing Enhancements
Shipping Label
Universal Checks
Public Symbols
SHA-256 Certs
Flighting
Flight Analysis

13. Dev Center Shipping Label
WinHEC 2015
8/30/2018 6:37 AM
Dev Center Shipping Label
Now Shipping labels can be edited
Create a Shipping Label
Select Partners to Share
Label can be updated by partners
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

14. Dev Center Automated Declarative and Universal Checks
8/30/2018 6:37 AM
Dev Center Automated Declarative and Universal Checks
Validate
Uses INFVerif and APIValidator from Windows WDK
Submit
Dev Center automatically verifies the above and catalogs your results
Review
Results stored in Catalog file (.cat), Certification section, and Logo Verification Report *
* Universal will show as greyed out for submissions without binaries (INF only).
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

15. Dev Center Public symbols
8/30/2018 6:37 AM
Dev Center Public symbols
Required with every submission
Symbols are used to provide you with enhanced crash data
Symbols are not shared externally
How to create public symbols
How to add symbols to your submission
For Attestation submissions, put symbols in the same folder as your driver files.
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

16. Dev Center Update to SHA-256 certs
8/30/2018 6:37 AM
Dev Center Update to SHA-256 certs
Starting in February 2018, submission packages signed using a SHA-1 digest algorithm and/or certificate chain will be rejected
Call to Action:
Update your Dev Center associated EV and other certificates to use SHA-2(SHA256)
Upload these to Dev Center
Use your SHA-256 updated certificates when signing your HLKx, HCKx, CAB, and WLK packages
No change to:
Submissions prior to this change are not affected
How you sign driver binaries (.sys, .dll, .exe) are not affected
More information see the Windows Hardware Certification Blog post
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

17. Dev Center Driver Flighting - Stats
WinHEC 2015
8/30/2018 6:37 AM
Dev Center Driver Flighting - Stats
>92% Flights meet 14 day SLA
>68% Flight meet 7-day SLA
25%
1 Day
68%
7 Day
92%
14 Day
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

18. Dev Center Driver Flighting - Quality
WinHEC 2015
8/30/2018 6:37 AM
Dev Center Driver Flighting - Quality
Main rejection reason is incorrect targeting
Down-level OS with Win10 OS
2 Part HWIDs without CHIDs
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. Dev Center Flight Analysis
WinHEC 2015
8/30/2018 6:37 AM
Dev Center Flight Analysis
What happens when there is a failure?
Understand the flight report and determine the impact of the failures
Reproduce the problem with tools in the HLK
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

20. Dev Center Flight Analysis
WinHEC 2015
8/30/2018 6:37 AM
Dev Center Flight Analysis
HLK and WDK have tools to RCA
Understand Installation & Post Installation Failure codes
Reproduce using DevFund test suite
Enable DV for richer debugging
To certify the driver – you may have ignored small % of failures to get to a passing test.
MSDocs link mapping tests to failures
Device Error Message
Device Fundamentals Tests
CM_PROB_DRIVER_FAILED_PRIOR_UNLOAD
DF-PNP_DIF_Remove_Device_Test (Reliability)
CM_PROB_UNSIGNED_DRIVER
DF-PNP_Disable_And_Enable_Device_Test (Reliability)
CM_PROB_DRIVER_FAILED_LOAD
CM_PROB_FAILED_POST_START
DF-Sleep_with_IO_During (Reliability)
Visual Studio 2017 now supports the (Fall Creators Update) WDK
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

21. Healthy Drivers Two Axioms
WinHEC 2015
8/30/2018 6:37 AM
Healthy Drivers Two Axioms
No substitute for a well-written driver
Use Code Analysis
Use Static Driver Verifier
Run with Driver Verifier enabled
Validate with the HLK – Use new SysFund Capabilities!
No substitute for real-world validation through Flighting
Greater diversity of scenarios and hardware
Connects issues to customer impact
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

22. Call to Action Build DCHU Drivers!
WinHEC 2015
8/30/2018 6:37 AM
Call to Action
Build DCHU Drivers!
Customize with Extension INF’s
Join us for the DCHU Labs on Day 2
Use the development tools to write great drivers
Code Analysis, Driver Verifier, Static Driver Verifier, HLK, WDK
Use new SysFund Tests in HLK!
Join the Insider Program
Use flighting to automatically distribute driver
June 2017 WinHEC: Driver Flighting End 2 End session Here
WinHEC Online Fall Creators Update: Start Your Driver Flighting, The benefit of Driver Promotion session Here
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

23. I have feedback! How can I help?
WinHEC 2015
8/30/2018 6:37 AM
I have feedback!  How can I help?
Microsoft is listening!
Feedback Received
“Adding a software component (through AddComponent) can now only be done in an Extension INF file”
“Guidance on how to update device/component  firmware using Windows Update in a DCHU-friendly way”
“Clarify the difference between extension INF and component INF.”
“Provide an example on how to register COM components in a universal INF.”
Action Taken
Updated documentation and code samples- see links on the next slide
How do I provide feedback
© 2015 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

24. Universal Driver Development Resources
Transition to Universal Windows Drivers: Video
Provides important concepts and principles of Universal Windows Drivers, including guidance on authoring and testing.
Getting Started with Universal Windows Drivers: Article Documentation entry point for Universal Windows Drivers development.
Driver Package installation toolkit for Universal Drivers: Sample
Illustrates the DCHU principles of universal driver design, including a full sample driver.
*Updated* Universal Driver Scenarios: Article          
Describes how the DCHU universal driver sample applies DCHU design principles.
Creating a custom capability to pair a driver with a Hardware Support Application (HSA): Article
Details how to build a Universal Windows Platform (UWP) Hardware Support Application (HSA) using a Custom Capability.
Custom Capability UWP Sample: Sample
Demonstrates two key Custom Capability Scenarios: Protected communication with a Windows Service; Protected IOCTLs sent to a driver using Windows.Devices.Custom.
Other WinHEC Videos: Article
Link to the full set of WinHEC Taipei June 2017 session videos.
*Updated* Component INF’s: Article
How to article for using component INFs
*Updated* Extension INF’s : Article
How to article for using extension INFs
Validating Universal Windows Drivers with the APIValidator Tool: Article
The ApiValidator.exe tool is used to verify the APIs that your driver calls are valid for a Universal Windows driver. This tool is part of the Windows Driver Kit (WDK) for Windows 10.
INFVerif Tool Documentation: Article
InfVerif.exe validates the 'Declarative' status of a driver INF install package, while optionally reporting Universal status.
Driver Servicing Update: Video
Explains changes in the Driver Servicing Policy and HLK Compatibility Program.
Building Public and Private Symbols: Article
How to build public and private symbols.
Universal Drivers for Audio Documentation: Connect Package
Describes the Universal Drivers for Audio requirements, and offers jumping off points into additional Universal Driver documentation.
DHCU Assessment Kit: Connect Package
Helps assess the Declarative and Universal-API compliance status of third party drivers on a device.

25. 8/30/2018 6:37 AM
© 2014 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.