USB Drivers are one of the must-have tools to be installed on your PC or Mac. Because of that, your mobile device interacts with your PC.These work as Bridge between your Phone and your computer. The USB drivers help us to connect our phone to the computer and perform tasks like transferring data, syncing your device with a PC. Microsoft-provided USB drivers USB device-side drivers in Windows A set of drivers for handling common function logic for USB devices. USB host-side drivers in Windows Microsoft provides a core stack of drivers that interoperate with devices that are connected to EHCI and xHCI controllers. For OSes begining from Windows XP for successful overclocking of Low Speed USB devices is REQUIRED the presence original (not altered by other programs) version of system driver USBPORT.SYS (%sytemroot%system32driversusbport.sys). Windows 8 beginning also works with USBXHCI.SYS (%sytemroot%system32driversusbxhci.sys). When you connect a USB audio device to a Windows 10 Version 1703-based computer the first time, the operating system detects the device but loads the standard USB audio 2.0 driver (usbaudio2.sys) instead of the specific device driver.

• August 22, 2019 2.9.8

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.9.8	Released August 22, 2019	Type ZIP	Filesize 3MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 controller Graphics card with 24 or 32 bit Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Added several internal interfaces for particular sensors (J003).

• January 25, 2019 2.9.6

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.9.6	Released January 25, 2019	Type ZIP	Filesize 3MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 controller Graphics card with 24 or 32 bit Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Added missing Tonemapping Auto property.

• May 4, 2018 2.9.5

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.9.5	Released May 4, 2018	Type ZIP	Filesize 3MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 controller Graphics card with 24 or 32 bit Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Enabled tonemapping for 8bit video formats, e.g. Y800, RGB24 and RGB32.

• November 21, 2017 2.9.4

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.9.4	Released November 21, 2017	Type ZIP	Filesize 3.2MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Repaired not working J003 mono sensor pattern fix on particular video formats. This driver version is the last that works in Windows XP.

• January 9, 2017 2.9.3

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.9.3	Released January 9, 2017	Type ZIP	Filesize 3.2MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Added a pattern fix for J003 mono sensors.

• January 9, 2017 2.9.1

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.9.1	Released January 9, 2017	Type ZIP	Filesize 3.2MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Fixed the driver signature Code 52 error on new Windows 10 v1607 systems.

• January 15, 2016 2.8.9

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.8.9	Released January 15, 2016	Type ZIP	Filesize 2.3MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Changed certificates so that the driver can also be installed in Vista.

• November 9, 2015 2.8.7

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.8.7	Released November 9, 2015	Type ZIP	Filesize 2.3MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Fixed an error which can appear when using sharpness on older CPUs.

• October 20, 2015 2.8.5

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.8.5	Released October 20, 2015	Type ZIP	Filesize 2.3MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Fixed a bug which can appear on LivePause call.

• July 15, 2015 2.8.0

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.8.0	Released July 15, 2015	Type ZIP	Filesize 2.4MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Support of DFK ECU010-L34 with serial number property. Added tone mapping.

• February 17, 2015 2.7.33

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.7.33	Released February 17, 2015	Type ZIP	Filesize 2.4MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog The Auto Focus Onepush Running flag now resets correctly after the auto focus has finished.

• February 5, 2015 2.7.32

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.7.32	Released February 5, 2015	Type ZIP	Filesize 2.4MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Video format MJPG (2592x1944) of DFK AFU050-L34 camera can now be used.

• January 14, 2015 2.7.31

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.7.31	Released January 14, 2015	Type ZIP	Filesize 2.3MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Support for IMX236 based cameras. Support for RGB64 color formats. Several performance improvements.

• June 6, 2014 2.7.9.1152

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.7.9.1152	Released June 6, 2014	Type ZIP	Filesize 2.1MB
  Requirements Intel Core i3 or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit), Windows 10 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Added new properties: Brightness, sharpness, de-noise, saturation, hue and contrast. Added new property: Highlight reduction. Added new property: White balance temperature controls. Pixelfix for Y16 cameras now works as expected. VideoControl_ExternalTrigger (DirectShow property) can now be set as expected.

• January 1, 2014 2.6.5.1014

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.6.5.1014	Released January 1, 2014	Type ZIP	Filesize 1.9MB
  Requirements Intel Pentium IV or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit) DirectX 9.0c or higher
  Changelog Fixed missing auto-gain for DFK AFU130. Fixed focus when start value is out of auto_focus_range. Fixed problem with AUTOFOCUS_ROI_RIGHT: minimum possibly wrong. Fixed auto focus ROI not working for 21*UC cameras. Fixed crash on load/connect with certain cameras 22/72xUC. Fixed previous exposure settings not being loaded on reconnect. Complete reworking of internal property system. Fixed Windows XP driver load crash. Fixed drop counter to be accessible from DirectShow. Fixed Windows 8 problem with certain video formats needing converters with standard DirectShow filters (e.g. Y800, capturing to an Y800 avi file was not possible). Fixed a problem with Windows 8 usbxhci driver not allowing transfers larger then 4 MB.

• February 26, 2013 2.4.14.851

  Device driver for all The Imaging Source USB cameras except the 33U, 37U, 38U and AFU auto focus series.
  Version 2.4.14.851	Released February 26, 2013	Type ZIP	Filesize 1.9MB
  Requirements Intel Pentium IV or similar, 2 GB RAM USB 3.0 or USB 2.0 controller (depends upon camera model) Graphics card with 24 or 32 bit Windows XP, Windows Vista, Windows 7 (32 & 64 bit), Windows 8 (32 & 64 bit) DirectX 9.0c or higher
  Changelog WHQL certification.

Starting with Windows 10, release 1703, a USB Audio 2.0 driver is shipped with Windows. It is designed to support the USB Audio 2.0 device class. The driver is a WaveRT audio port class miniport. For more information about the USB Audio 2.0 device class, see https://www.usb.org/documents?search=&type%5B0%5D=55&items_per_page=50.

The driver is named: usbaudio2.sys and the associated inf file is usbaudio2.inf.

The driver will identify in device manager as 'USB Audio Class 2 Device'. This name will be overwritten with a USB Product string, if it is available.

The driver is automatically enabled when a compatible device is attached to the system. However, if a third-party driver exists on the system or Windows Update, that driver will be installed and override the class driver.

Architecture

usbaudio2.sys fits within the wider architecture of Windows USB Audio as shown.

Related USB specifications

The following USB specifications define USB Audio and are referenced in this topic.

• USB-2 refers to the Universal Serial Bus Specification, Revision 2.0
• ADC-2 refers to the USB Device Class Definition for Audio Devices, Release 2.0.
• FMT-2 refers to the Audio Data Formats specification, Release 2.0.

The USB-IF is a special interest group that maintains the Official USB Specification, test specifications and tools.

Audio formats

The driver supports the formats listed below. An alternate setting which specifies another format defined in FMT-2, or an unknown format, will be ignored.

Type I formats (FMT-2 2.3.1):

• PCM Format with 8..32 bits per sample (FMT-2 2.3.1.7.1)
• PCM8 Format (FMT-2 2.3.1.7.2)
• IEEE_FLOAT Format (FMT-2 2.3.1.7.3)

Type III formats (FMT-2 2.3.3 and A.2.3):

• IEC61937_AC-3
• IEC61937_MPEG-2_AAC_ADTS
• IEC61937_DTS-I
• IEC61937_DTS-II
• IEC61937_DTS-III
• TYPE_III_WMA

Feature descriptions

This section describes the features of the USB Audio 2.0 driver.

Audio function topology

The driver supports all entity types defined in ADC-2 3.13.

Each Terminal Entity must have a valid clock connection in compatible USB Audio 2.0 hardware. The clock path may optionally include Clock Multiplier and Clock Selector units and must end in a Clock Source Entity.

The driver supports one single clock source only. If a device implements multiple clock source entities and a clock selector, then the driver will use the clock source that is selected by default and will not modify the clock selector’s position.

A Processing Unit (ADC-2 3.13.9) with more than one input pin is not supported.

An Extension Unit (ADC-2 3.13.10) with more than one input pin is not supported.

Cyclic paths in the topology are not allowed.

Audio streaming

The driver supports the following endpoint synchronization types (USB-2 5.12.4.1):

• Asynchronous IN and OUT
• Synchronous IN and OUT
• Adaptive IN and OUT

For the asynchronous OUT case the driver supports explicit feedback only. A feedback endpoint must be implemented in the respective alternate setting of the AS interface. The driver does not support implicit feedback.

There is currently limited support for devices using a shared clock for multiple endpoints.

For the Adaptive IN case the driver does not support a feedforward endpoint. If such an endpoint is present in the alternate setting, it will be ignored. The driver handles the Adaptive IN stream in the same way as an Asynchronous IN stream.

The size of isochronous packets created by the device must be within the limits specified in FMT-2.0 section 2.3.1.1. This means that the deviation of actual packet size from nominal size must not exceed +/- one audio slot (audio slot = channel count samples).

Descriptors

An audio function must implement exactly one AudioControl Interface Descriptor (ADC-2 4.7) and one or more AudioStreaming Interface Descriptors (ADC-2 4.9). A function with an audio control interface but no streaming interface is not supported.

The driver supports all descriptor types defined in ADC-2, section 4. The following subsections provide comments on some specific descriptor types.

Class-Specific AS interface descriptor

For details on this specification, refer to ADC-2 4.9.2.

An AS interface descriptor must start with alternate setting zero with no endpoint (no bandwidth consumption) and further alternate settings must be specified in ascending order in compatible USB Audio 2.0 hardware.

An alternate setting with a format that is not supported by the driver will be ignored.

Each non-zero alternate setting must specify an isochronous data endpoint, and optionally a feedback endpoint. A non-zero alternate setting without any endpoint is not supported.

The bTerminalLink field must refer to a Terminal Entity in the topology and its value must be identical in all alternate settings of an AS interface.

The bFormatType field in the AS interface descriptor must be identical to bFormatType specified in the Format Type Descriptor (FMT-2 2.3.1.6).

For Type I formats, exactly one bit must be set to one in the bmFormats field of the AS interface descriptor. Otherwise, the format will be ignored by the driver.

To save bus bandwidth, one AS interface can implement multiple alternate settings with the same format (in terms of bNrChannels and AS Format Type Descriptor) but different wMaxPacketSize values in the isochronous data endpoint descriptor. For a given sample rate, the driver selects the alternate setting with the smallest wMaxPacketSize that can fulfill the data rate requirements.

Type I format type descriptor

For details on this specification, refer to FMT-2 2.3.1.6.

The following restrictions apply:

Class-Specific AS isochronous audio data endpoint descriptor

For details on this specification, refer to ADC-2 4.10.1.2.

The MaxPacketsOnly flag in the bmAttributes field is not supported and will be ignored.

The fields bmControls, bLockDelayUnits and wLockDelay will be ignored.

Class requests and interrupt data messages

Drivers Uls Usb Devices Pc Camera

The driver supports a subset of the control requests defined in ADC-2, section 5.2, and supports interrupt data messages (ADC-2 6.1) for some controls. The following table shows the subset that is implemented in the driver.

Additional information on the controls and requests is available in the following subsections.

Clock source entity

For details on this specification, refer to ADC-2 5.2.5.1.

At a minimum, a Clock Source Entity must implement Sampling Frequency Control GET RANGE and GET CUR requests (ADC-2 5.2.5.1.1) in compatible USB Audio 2.0 hardware.

The Sampling Frequency Control GET RANGE request returns a list of subranges (ADC-2 5.2.1). Each subrange describes a discrete frequency, or a frequency range. A discrete sampling frequency must be expressed by setting MIN and MAX fields to the respective frequency and RES to zero. Individual subranges must not overlap. If a subrange overlaps a previous one, it will be ignored by the driver.

A Clock Source Entity which implements one single fixed frequency only does not need to implement Sampling Frequency Control SET CUR. It implements GET CUR which returns the fixed frequency, and it implements GET RANGE which reports one single discrete frequency.

Clock selector entity

For details on this specification, refer to ADC-2 5.2.5.2

The USB Audio 2.0 driver does not support clock selection. The driver uses the Clock Source Entity which is selected by default and never issues a Clock Selector Control SET CUR request. The Clock Selector Control GET CUR request (ADC-2 5.2.5.2.1) must be implemented in compatible USB Audio 2.0 hardware.

Feature unit

For details on this specification, refer to ADC-2 5.2.5.7.

The driver supports one single volume range only. If the Volume Control GET RANGE request returns more than one range, then subsequent ranges will be ignored.

The volume interval expressed by the MIN and MAX fields should be an integer multiple of the step size specified in the RES field.

If a feature unit implements single channel controls as well as a master control for Mute or Volume, then the driver uses the single channel controls and ignores the master control.

Additional Information for OEM and IHVs

OEMs and IHVs should test their existing and new devices against the supplied in-box driver.

There is not any specific partner customization that is associated with the in-box USB Audio 2.0 driver.

This INF file entry (provided in a update to Windows Release 1703), is used to identify that the in-box driver is a generic device driver.

The in-box driver registers for the following compatible IDs with usbaudio2.inf.

See the USB audio 2.0 specification for subclass types.

USB Audio 2.0 Devices with MIDI (subclass 0x03 above) will enumerate the MIDI function as a separate multi-function device with usbaudio.sys (USB Audio 1.0 driver) loaded.

The USB Audio 1.0 class driver registers this compatible ID with wdma_usb.inf.

Drivers Uls Usb Devices Dongle

And has these exclusions:

An arbitrary number of channels (greater than eight) are not supported in shared mode due to a limitation of the Windows audio stack.

IHV USB Audio 2.0 drivers and updates

For IHV provided third party driver USB Audio 2.0 drivers, those drivers will continue to be preferred for their devices over our in-box driver unless they update their driver to explicitly override this behavior and use the in-box driver.

Audio Jack Registry Descriptions

Starting in Windows 10 release 1703, IHVs that create USB Audio Class 2.0 devices having one or more jacks have the capability to describe these jacks to the in-box Audio Class 2.0 driver. The in-box driver uses the supplied jack information when handling the KSPROPERTY_JACK_DESCRIPTION for this device.

Jack information is stored in the registry in the device instance key (HW key).

The following describes the audio jack information settings in the registry:

<tid> = terminal ID (As defined in the descriptor)

<n> = Jack number (1 ~ n).

Convention for <tid> and <n> is:

• Base 10 (8, 9, 10 rather than 8, 9, a)
• No leading zeros
• n is 1-based (first jack is jack 1 rather than jack 0)

For example:

T1_NrJacks, T1_J2_ChannelMapping, T1_J2_ConnectorType

For additional audio jack information, see KSJACK_DESCRIPTION structure.

These registry values can be set in various ways:

• By using custom INFs which wrap the in-box INF for the purpose to set these values.

• Directly by the h/w device via a Microsoft OS Descriptors for USB devices (see example below). For more information about creating these descriptors, see Microsoft OS Descriptors for USB Devices.

Microsoft OS Descriptors for USB Example

The following Microsoft OS Descriptors for USB example contains the channel mapping and color for one jack. The example is for a non-composite device with single feature descriptor.

The IHV vendor should extend it to contain any other information for the jack description.

Troubleshooting

If the driver does not start, the system event log should be checked. The driver logs events which indicate the reason for the failure. Similarly, audio logs can be manually collected following the steps described in this blog entry. If the failure may indicate a driver problem, please report it using the Feedback Hub described below, and include the logs.

For information on how to read logs for the USB Audio 2.0 class driver using supplemental TMF files, see this blog entry. For general information on working with TMF files, see Displaying a Trace Log with a TMF File.

For information on 'Audio services not responding' error and USB audio device does not work in Windows 10 version 1703 see, USB Audio Not Playing

Feedback Hub

If you run into a problem with this driver, collect audio logs and then follow steps outlined in this blog entry to bring it to our attention via the Feedback Hub.

Driver development

Drivers Uls Usb Devices Adapter

This USB Audio 2.0 class driver was developed by Thesycon and is supported by Microsoft.

Drivers Uls Usb Devices Wireless Adapter

See also