cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
Microsoft USB Blog
Copied!
Home
Options
1,530

Introducing the USB4™ Switch

Philip Froese on 09-17-2019 11:49 AM
7,374

UCSI based USB Type-C systems may see a shutdown delay if connect changes race with power transition

Philip Froese on 06-24-2019 04:20 PM
My system takes a long time to power down if a USB Type-C device, dock, or charger is plugged in or unplugged during the...
4,258

Debugging UCSI firmware failures

Rajib Dutta on 11-06-2018 06:24 PM
3,065

Introducing USB Type-C Connector System Software Interface (UCSI) Class Extension

Rajib Dutta on 11-06-2018 03:52 PM
USB Type-C System Software Interface Class Extension
912

Bringing Device Support to Windows Containers

Shyamal Varma on 10-12-2018 03:57 PM
First published on MSDN on Sep 05, 2018 We’ve been working with several different feature teams within Microsoft to enab...
2,445

Running USB Type-C System HLK tests with the Type-C MUTT

Shyamal Varma on 10-12-2018 03:57 PM
First published on MSDN on Jun 05, 2018 Authored by Philip Froese [MSFT][Last updated July 13, 2018]In the next release ...
545

The HMD Exerciser Kit- A Test Kit for VR HMDs

Shyamal Varma on 10-12-2018 03:56 PM
First published on MSDN on Jan 19, 2018 Authored by Matthew Hartman [MSFT] To support the wave of VR HMDs coming to mark...
799

Reading Driver Logs in USB Type-C HLK Tests

Shyamal Varma on 10-12-2018 03:55 PM
First published on MSDN on Aug 03, 2017 Authored by Philip Froese [MSFT]Newly added in the RS3 preview builds of the HLK...
643

Using UsbCApiCmd for basic USB Type-C validation

Shyamal Varma on 10-12-2018 03:53 PM
First published on MSDN on Feb 01, 2017 Authored by Michelle Bergeron [MSFT]UsbCApiCmd is a simple tool that you can use...
644

Setting up an environment to run USB Type-C system HLK tests

Shyamal Varma on 10-12-2018 03:53 PM
First published on MSDN on Jul 06, 2016 Authored by Michelle Bergeron [MSFT] and Makarand Sonare [MSFT][Last updated 10/...
560

Do I need to write a driver for my USB Type-C hardware?

Shyamal Varma on 10-12-2018 03:52 PM
First published on MSDN on Jun 20, 2016 Authored by Michelle Bergeron [MSFT]Windows 10 introduced support for the USB Ty...
770

Filing USB feedback with Repro Mode in Windows 10

Shyamal Varma on 10-12-2018 03:52 PM
First published on MSDN on Aug 17, 2015 Authored by Michelle Vogel [MSFT]Feedback from users is one of the many ways the...
2,764

What is new with Serial in Windows 10

Shyamal Varma on 10-12-2018 03:49 PM
First published on MSDN on Jul 29, 2015 Authored by George Roussos [MSFT]The Serial Communication protocol is everywhere...
923

USB tests in the Windows 10 Hardware Lab Kit (HLK)

Shyamal Varma on 10-12-2018 03:49 PM
First published on MSDN on May 14, 2015 The purpose of this blog post is to provide a resource with solutions to common ...
376

New in Windows 10: USB Dual Role on Mobile

Shyamal Varma on 10-12-2018 03:48 PM
First published on MSDN on May 11, 2015 Authored by Andrea Keating [MSFT] Have you ever wanted to watch the video that w...
735

New in Windows 10: USB Dual Role, Type-C, SuperSpeedPlus, and much more…

Shyamal Varma on 10-12-2018 03:48 PM
First published on MSDN on May 11, 2015 Authored by Fred Bhesania [MSFT]Hi everyone!The USB team is excited to share new...
1,350

Announcing the availability of a standalone legacy 1394 OHCI (FireWire) package

Shyamal Varma on 10-12-2018 03:47 PM
First published on MSDN on Sep 10, 2014 By Koichi Hirao [MSFT]We are pleased to announce the immediate availability of a...
1,640

Capturing USB Debug Traces

Shyamal Varma on 10-12-2018 03:47 PM
First published on MSDN on Sep 02, 2014 By Philip Froese [MSFT][Update 11/2016] The commands outlined in this post are n...
914

How to Capture and Read HID Traces in Windows 8.1

Shyamal Varma on 10-12-2018 03:47 PM
First published on MSDN on Mar 14, 2014 By Andrea Keating [MSFT] and Arvind Aiyar [MSFT] A common class of USB devices i...
457

Reducing the size of HID descriptors

Shyamal Varma on 10-12-2018 03:47 PM
First published on MSDN on Feb 13, 2014 Authored by Arvind Aiyar [MSFT] One of the descriptors that a USB HID device nee...
889

Windows 8.1: USB MIDI Device Works on USB 2.0 Port, Doesn’t Work on USB 3.0 Port

Shyamal Varma on 10-12-2018 03:46 PM
First published on MSDN on Jan 21, 2014 Last update: September 2nd 2014Note: A fix for this issue is included in August ...
884

Help! After installing Windows 8.1, my device fails with error code 19

Shyamal Varma on 10-12-2018 03:45 PM
First published on MSDN on Dec 10, 2013 Authored by Eliyas Yakub [MSFT]One of the common issues reported in Microsoft an...
1,114

Why does my USB device work on Windows 8.0 but fail on Windows 8.1 with code 43?

Shyamal Varma on 10-12-2018 03:44 PM
First published on MSDN on Nov 25, 2013 Authored by Martin Borve [MSFT]Updated 1/27/2014 by Philip Ries to show how to u...
2,273

Link Power Management (LPM) in USB 2.0

Shyamal Varma on 10-12-2018 03:43 PM
First published on MSDN on Nov 15, 2013 Authored by Vivek Gupta [MSFT]In this blog, I’ll provide an overview of the USB ...
1,747

Capturing USB ETW traces with Microsoft Message Analyzer (MMA)

Shyamal Varma on 10-12-2018 03:43 PM
First published on MSDN on Nov 08, 2013 Authored by Andrea Keating [MSFT] & Eliyas Yakub [MSFT][Updated 4/24/2017 with n...
743

Help! After installing Windows 8.1, my USB device doesn't charge or it disconnects and reconnects frequently...

Shyamal Varma on 10-12-2018 03:41 PM
First published on MSDN on Nov 08, 2013 Authored by MJ Bustamante [MSFT] In Windows 8.
1,636

Help! After installing Windows 8.1, my USB drive disappears or file transfers stop unexpectedly…

Shyamal Varma on 10-12-2018 03:40 PM
First published on MSDN on Oct 31, 2013 Authored by Jim Bovee [MSFT]Last update: April 17, 2014Note: The registry workar...
535

Help! After installing Windows 8.1, the SuperSpeed ports of my ASUS system don’t work…

Shyamal Varma on 10-12-2018 03:39 PM
First published on MSDN on Oct 18, 2013 Authored by Eliyas Yakub [MSFT] Most ASUS systems have a built-in utility named ...
477

Debugging your USB Windows Store app with TraceView

Shyamal Varma on 10-12-2018 03:38 PM
First published on MSDN on Jul 03, 2013 Authored by Philip Ries [MSFT]Last week, at the Microsoft Build Developer Confer...
1,034

How to include and view WPP trace messages in a driver’s public PDB files

Shyamal Varma on 10-12-2018 03:38 PM
First published on MSDN on Jun 28, 2013 Authored by Eliyas Yakub [MSFT] and Robert Zhao [MSFT]Most Microsoft-provided dr...
Latest Comments
trivanks
in Introducing the USB4™ Switch on 10-08-2019
Hi, Thanks for the introduction of USB4™ Switch can we use it as portable in any windows pc? and it's better than v3? (USB Type-C port) you know currently, I'm using a charger my new phone this type switch. let me know also how to get one of these too...? ThanksBuzz CNN
0 Likes
dtimes3
in Introducing the USB4™ Switch on 10-04-2019
How can we get one of these?
0 Likes
lgp1985
in Capturing USB Debug Traces on 10-01-2019
Hey,I'm unable to run these commands, might it be from here or http://aka.ms/usbtrace the commandlogman update trace -n usbtrace -p Microsoft-Windows-USB-USBXHCI (Default,PartialDataBusTrace,StateMachine)fails with errorA user account is required to confirm the properties of the current Data Collect...
0 Likes
vahanesac
in How does USB stack enumerate a device? on 09-23-2019
Can you elaborate "For compatibility reasons the configuration descriptor request will specify a length of 255 bytes." in Configuration Descriptor Section ?
0 Likes
Rajib Dutta
in Debugging UCSI firmware failures on 08-13-2019
@Patrick_Chen_HP , for the purpose of UcmUcsiCx debugging, you should not need access to private symbols. If you are facing symbols issues, I will be happy to assist you if you. Please provide me more details of the problem you are facing.
0 Likes