![]() The driver supports one single clock source only. The clock path may optionally include Clock Multiplier and Clock Selector units and must end in a Clock Source Entity. ![]() The driver supports all entity types defined in ADC-2 3.13.Įach Terminal Entity must have a valid clock connection in compatible USB Audio 2.0 hardware. This section describes the features of the USB Audio 2.0 driver. An alternate setting, which specifies another format defined in FMT-2, or an unknown format, will be ignored. The driver supports the formats listed below. The USB-IF is a special interest group that maintains the Official USB Specification, test specifications and tools. FMT-2 refers to the Audio Data Formats specification, Release 2.0.ADC-2 refers to the USB Device Class Definition for Audio Devices, Release 2.0.USB-2 refers to the Universal Serial Bus Specification, Revision 2.0. ![]() The following USB specifications define USB Audio and are referenced in this article. The usbaudio2.sys driver fits within the wider architecture of Windows USB Audio as shown. However, if a third-party driver exists on the system or Windows Update, that driver will be installed and override the class driver. The driver is automatically enabled when a compatible device is attached to the system. This name will be overwritten with a USB product string, if it's available. The driver will identify in device manager as "USB Audio Class 2 Device". The driver is named: usbaudio2.sys and the associated inf file is usbaudio2.inf. ![]() The driver is a WaveRT audio port class miniport. It's designed to support the USB Audio 2.0 device class. Starting with Windows 10, release 1703, a USB Audio 2.0 driver is shipped with Windows. ![]()
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