Provides access to the wall clock register and link position registers. Manages bus bandwidth resources on the HD audio link. Sets up the DMA engines that transfer data to or from the cyclic buffers. Passes commands from its children to the codecs and retrieves responses from the codecs. Handles interrupt service routines (ISRs) for unsolicited responses and propagates the unsolicited responses to its children. Queries the codecs on the bus and creates children to manage the codecs. Function drivers allocate and free these resources through the HD audio DDI. In addition, the bus driver manages the HD audio link hardware resources, which include the DMA engines and bus bandwidth. The bus driver exposes the HD audio DDI that its children-instances of the function drivers that control the audio and modem codecs-can use to program the HD audio controller hardware. NVIDIA Corporation - Graphics Adapter WDDM2.The HD audio bus driver is the only software component that directly accesses the hardware registers of the HD audio bus interface controller. Windows 10 and later drivers, Windows 10 and later upgrade & servicing drivers NVIDIA Corporation driver update for NVIDIA High Definition Audio Windows 10 and later drivers, Windows 10 S and Later Servicing Drivers Windows 10 Anniversary Update and Later Servicing Drivers, Windows 10 S and Later Servicing Drivers Windows 10 Anniversary Update and Later Servicing Drivers Windows 10 version 1803 and Later Servicing Drivers, Windows 10 Version 1803 and Later Upgrade & Servicing Drivers, Windows 10 S Version 1803 and Later Servicing Drivers, Windows 10 S Version 1803 and Later Upgrade & Servicing Drivers Windows 10 Fall Creators Update and Later Servicing Drivers, Windows 10 Fall Creators Update and Later Upgrade & Servicing Drivers, Windows 10 S Version 1709 and Later Servicing Drivers for testing, Windows 10 S Version 1709 and Later Upgrade & Servicing Drivers for testing Windows 10, version 1903 and later, Servicing Drivers, Windows 10, version 1903 and later, Upgrade & Servicing Drivers
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