Medtronic USB Devices Driver

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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.

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

USB

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.

Medtronic Usb Devices Drivers

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

Medtronic USB Devices Driver

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:

FormatSubslot sizeBit resolution
Type I PCM format:1 <= bSubslotSize <= 48 <= bBitResolution <= 32
Type I PCM8 format:bSubslotSize 1bBitResolution 8
Type I IEEE_FLOAT format:bSubslotSize 4bBitResolution 32
Type III IEC61937 formats:bSubslotSize 2bBitResolution 16

Class-Specific AS isochronous audio data endpoint descriptor

Medtronic usb device driverMedtronic

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

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.

EntityControlGET CURSET CURGET RANGEINTERRUPT
Clock SourceSampling Frequency Controlxxx
Clock SelectorClock Selector Controlx
Clock MultiplierNumerator Controlx
Denominator Controlx
TerminalConnector Controlxx
Mixer UnitMixer Controlxxx
Selector UnitSelector Controlxx
Feature UnitMute Controlxxx
Volume Controlxxxx
Automatic Gain Controlxx
Effect Unit
Processing Unit
Extension Unit

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.

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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.

Medtronic USB Devices Driver

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.

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:

Devices
  • 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

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

See also

Medtronic Usb Device Driver

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3.Please provide basic data when inquiring support: (1) dongle serial number with the prefix, (2) year/ date purchased , (3) from where you bought, (4) Your other IR device (type/brand/model) you want to link to? (see Tech Support Form)

ACT-IRx24UN series (incl. IR224UN/424UN, IRx24UN-Li, IRx24UN-LN, IRx24UN-L+; IRx24UN-Lx-LE series)

Drivers for Mac OS, Windows (32 & 64 bit); WinCE; & Linux (Note: Shares the same driver for ACT-IR100UD family & ACT1-201)
For Windows 7/8/10 OS, Dvr installer v1.5.0 and Install Guide for ACT-IRx24UN-Lx and IRx24UN-Lx-LE (Compatible Driver & TSPack for those IR adapters which their SN# prefix starts with 'UN' or 'LI').

Please contact [email protected] for the driver (for some old IR adapters the IC used inside is EOL, with no driver support. This can be identified by your IR adapter serial number that is not 'UN' or 'LI'. In such a case there will be no Windows 10 driver, may need to buy new IR adapter with new IC inside). (Please See NOTE3 above for providing your basic data)

For Windows 7/8/10 OS, Dvr installer v1.12.0 and Install Guide for ACT-IRx24UN-Lx and IRx24UN-Lx-LE
(Compatible Driver & TSPack for those IR adapters which their SN# prefix starts with 'TA').

Please contact [email protected] for the driver (for some old IR adapters the IC used inside is EOL, with no driver support. This can be identified by your IR adapter serial number. In such a case there will be no Windows 10 driver, may need to buy new IR adapter with new IC inside). (Please See NOTE3 above for providing your basic data)

IRx24UN-Lx_Lx-LE-Manual-v1.3.4-140324.pdf General Manual - ACT-IRx24UN-Li/IRx24UN-L+/ IRx24UN-LN and ACT-IRx24UN-Lx-LE
Advanced-Uninstaller-121127.zip_File Size=18279KBThis is a Driver Remover for those users who could not uninstall the old driver from PC successfully. After running this software and complete un-installation is done, please reboot your PC. Then install the new driver. ( Source: Advance Uninstaller PRO by Innovative Solutions.)
  • For Mac OS X 10.11 El Capitan (64-bit)
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  • For PL2303 H/HX/HXD/EA/RA/SA/TA/TB chip versions
  • For Prolific USB VID_067B&PID_2303 Only
  • Includes Driver Installation Manual

Please contact [email protected] for the driver (for some old IR adapters the IC used inside is EOL, with no driver support. This can be identified by your IR adapter serial number. In such a case there will be no Windows 10 driver, may need to buy new IR adapter with new IC inside). (Please See NOTE3 above for providing your basic data)

md_IRx24UN_H_HX_X_dmg_v1.2.1r2.zipACT-IR224UN/424UN Mac OS X Universal Binary Driver (DMG file format)
For MacOS 10.1 and above for PowerPC based Mac
For MacOS 10.4 and above for PowerPC and Intel based Mac
Supports Mac OS X 10.5 and above for PowerPC and Intel based Mac
md_IRx24UN_Mac8_9_v136b1.zipACT-IR224UN/424UN Mac OS 8 & 9 driver v1.3.6 build 1
ACT-IR224UN-Li-4Mac-Manual-v1.3.4-140324.pdfManual - for Mac Users of ACT-IR224UN-Li
Generic_IRx24UN_WinCE50_ARM_v1009.CABACT-IR224UN/424UN WinCE 5.0 Driver for ARM Standard SDK
Also for Windows Mobile 6, Windows Mobile 5, PocketPC 2003.
NOTE: Check HKEY_LOCAL_MACHINEDriversActiveUSBSER folder in registry for the COM port number.
Generic_IRx24UN_WinCE50_x86_v1009.CABACT-IR224UN/424UN WinCE 5.0 Driver for x86 Standard SDK
Also for Windows Mobile 6, Windows Mobile 5, PocketPC 2003.
NOTE: Check HKEY_LOCAL_MACHINEDriversActiveUSBSER folder in registry for the COM port number.
ld_IRx24UN_Linux_v0728.rarACT-IR224UN/424UN Linux driver for RedHat 7.3/8.0/9.0 Only.
NOTE: No need to install drivers for following:
Linux Kernel 2.4.10 and above already includes built-in drivers for PL-2303H.
Linux Kernel 2.4.31 and above already includes built-in drivers for PL-2303H, PL-2303XA/HXA and PL-2303HXD
ACT-IR224UN/IR424UN Configuration utility

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ACT1-201 ; ACT1-211
ACT1-201 Driver
Driver InstallerPlease just download from IR224UN.Actually they share the same driver.
ACT1-211 GPS Driver
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ACT-IR100UD-MDT
ACT-IR100UD-MDT-CD-v1.1.0-130208.zipCD for IR100UD-MDT which includes Windows driver. Please download other drivers from above IRx24UNjust in case needed. They actually share the same.
ACT-IR2000UL/IR4000US
User's Manual for Windows XP/Vista/Win7/8/10

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Driver for Windows 98/Me/2000/XP/vista/Win7/8/10 (32 & 64 bit)
Please contact [email protected] for the driver (for some old IR adapters the IC used inside is EOL, with no driver support.
This can be identified by your IR adapter serial number. In such a case there will be no Windows 10 driver, may need to buy new IR adapter with new IC inside).
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ACT-IR2002UL/IR4002US
IR2002UL/IR4002US Manual

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IR2002UL /IR4002US Drivers
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This can be identified by your IR adapter serial number. In such a case there will be no Windows 10 driver, may need to buy new IR adapter with new IC inside).
(Please See NOTE3 abovefor providing your basic data)
Note:If you useIrDA-OBEX, these USB-IrDA adapters support Win7/8/10-32 and 64 bit.
But, if you use IrDA-IrComm,you'll need IrComm2K ( free software from 3rd party) for all Windows O.S., including Win7-32 bit.
However,IrComm2K does Not support 64bit. then please use ACT-IR100UD/ACT-IR100UD-v2/IR100UD-v3, the Intelligent USB-IrDA adapter which is our once-for-all solution.
ACT-IR100UD/ IR120UD/ IR100UD-v2/ IR100UD-v3
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In such a case there will be no Windows 10 driver, may need to buy new IR adapter with new IC inside). (Please See NOTE3 abovefor providing your basic data)
CD for IR100UD-LPT

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ACT-IR100M/ IR100MP/IR100MU
ACT-IR100Mx Series (100M/100MP/100MU) User Manual
ACT-IR100MxManual -v3.2.2.1-080324.pdf

Manual for ACT-IR100M/IR100MP

ACT-IR100MU-Manual-v1.2-100108.pdfManual for ACT-IR100MU
IR82x0D/IR8250P/IR826xD

Spec for ACT-IR82x0D

Technical Spec for ACT-IR82x0D

Spec of ACT-IR8250P

Technical Spec for ACT-IR8250P

ACT-IR826xD-Technical-v1.0.0.1-120220.pdf Technical Spec for ACT-IR826xD
ACT-IR3200M
ACT-IR3200M User Guide
Please contact [email protected](Please See NOTE3 above for providing your basic data)
ACT-IR200L/IR220L/IR220L+
Windows 7/8/10 Driver
Please contact [email protected] for the driver (for some old IR adapters the IC used inside is EOL, with no driver support. This can be identified by your IR adapter serial number.
In such a case there will be no Windows 10 driver, may need to buy new IR adapter with new IC inside). (Please See NOTE3 above for providing your basic data) It is for Windows 7/8/10 IrDA driver.
Windows User Manual - for IrDA use
IR200L-IR220L&IR220L+ Manual.pdfDriver install/uninstall procedure for Windows 98/2000/XP/Vista/Win7/8/10 (32 & 64 bit)
ACTiLinkACPI_011L.zip
  1. NOTE: a. You Need Not install ACTiLinkACPI for your PC UNLESS it is really needed under some Notebook PC for IR220L+ due to below reasons.
    NOTE: b. The file we provide here is ONLY a 30-day TRIAL Version. Please BUY the Standard Version i
    f you feel it DOES Help, after the trial period expired.

  2. [What is ACPI]: In Win98SE and later Windows O.S., ACPI manager is used to save power for notebook PC. e.g., if no software using floating calculation, ACPI manager may turn off CPU. It then saves power.

  3. [What it helps]: ACPI manager also disables COM port. ACT-IR220L+ uses no external power, which gets from RS232 COM port RTS/DTR signal lines. This is to Deactivate this function, so that IR220L+ can get power and function well.

  4. Windows OS relevance : ACTiLinkACPI will not work on all OLD Windows O.S., e.g. Windows 95.

ACT-IR200L
ACT-IR200L-UsefulLink-v1.0.0-101013.pdfUseful Third Party Driver/Software Developer URL Link for ACT-IR200L
Windows 3.11 Driver
Irwin311.zip Irwin311.exe - Windows 3.11 Driver for IR200L/220L/220L+ Only
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IrCOMM
IrComm for Windows 2000/XP/Vista/Win 7
IrComm2K.zipIrComm - to Create Virtual Port
Manual-VirtualCOMport-IrCOMM2Kdriver.pdfMicrosoft Windows 2K/XP/Vista/Win7 IrDA stack does not include IrCOMM. So, if your opposite IrDA device supports IrCOMM as a upper IrDA application protocol and wish your device exchange data using IrCOMM protocol then you can download this Third party driver and install it. Please, refer Manual for installation
ACT-IR204UN
CD Pack for ACT-IR204UN
ACT-IR204UN installation CD [Note]: Only supports up to Windows XP.
(for Windows Vista/7/8/10 and up, IR224UN is its replacement.(2nd generation)

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BLUETOOTH Dongles:
ACT-BT5100US-Air
BT5100US-Air.zip Driver Installation CD: IVT BlueSoleil (TM) 1.6.1.1 & user manual
ACT-BT5701S v2
ACT-BT5701Sv2-Manual-v2.1.1-101223.zipUser's manual
ACT-BT5711U
ACT-BT5711U-Manual-v1.0.3.1-140529.zipUser's manual
ACT-BT5800UB & BT5900US
Note-Printer_PortSetting.pdfA common Note on Printer Port Setup
OTHER OLD Dongles Solutions:
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