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#2 USB PNP AUDIO DEVICE DRIVER SERIAL#
#2 USB PNP AUDIO DEVICE DRIVER DRIVER#

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.

#2 USB PNP AUDIO DEVICE DRIVER DRIVER#

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.

#2 USB PNP AUDIO DEVICE DRIVER SERIAL#

USB-2 refers to the Universal Serial Bus Specification, Revision 2.0.

The following USB specifications define USB Audio and are referenced in this topic. Usbaudio2.sys 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 is 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. For more information about the USB Audio 2.0 device class, see.

The driver is a WaveRT audio port class miniport. It is 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.