Usb Av Grabber Ws-vr203p Driver

USB Audio 2.0 Drivers • 5/14/2018 • 8 minutes to read • Contributors • In this article 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.

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.

Drivers7.9M5(drivers for MAC OS & Windows,support Win10). WS-UG17N1 WS-UG17GN1, Networking AV Adapter. WS-WN683NA, Wireless USB Adapter, Windows Supported MAC OS Supported Linux Supported Drivers(V6.68), 11/29/. WS-VR203P-A, USB Video and Audio Capture, Windows Supported.

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However, if a third-party driver exists on the system or Windows Update, that driver will be installed and override the class driver. Architecture USBAudio.Sys fits within the wider architecture of Windows USB Audio as shown.

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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, 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 (FMT20 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 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 ADC20, 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.