On 7/24/23 19:33, Wesley Cheng wrote: > diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig > index c170672f847e..d9dc92bea525 100644 > --- a/drivers/usb/host/Kconfig > +++ b/drivers/usb/host/Kconfig > @@ -104,6 +104,15 @@ config USB_XHCI_RZV2M > Say 'Y' to enable the support for the xHCI host controller > found in Renesas RZ/V2M SoC. > > +config USB_XHCI_SIDEBAND > + bool "xHCI support for sideband" > + help > + Say 'Y' to enable the support for the xHCI sideband capability. > + provide a mechanism for a sideband datapath for payload associated Provide > + with audio class endpoints. This allows for an audio DSP to use > + xHCI USB endpoints directly, allowing CPU to sleep while playing > + audio audio. -- ~Randy