linux-kernel - Re: [PATCH v33 14/31] ASoC: Add SoC USB APIs for adding an USB backend

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Message-ID: <b167789c-6569-4813-be8c-9292fab90848@infradead.org>
Date: Thu, 16 Jan 2025 15:37:05 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: Wesley Cheng <quic_wcheng@...cinc.com>, srinivas.kandagatla@...aro.org,
 mathias.nyman@...el.com, perex@...ex.cz, conor+dt@...nel.org,
 dmitry.torokhov@...il.com, corbet@....net, broonie@...nel.org,
 lgirdwood@...il.com, tiwai@...e.com, krzk+dt@...nel.org,
 pierre-louis.bossart@...ux.intel.com, Thinh.Nguyen@...opsys.com,
 robh@...nel.org, gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-sound@...r.kernel.org, linux-input@...r.kernel.org,
 linux-usb@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 linux-doc@...r.kernel.org
Subject: Re: [PATCH v33 14/31] ASoC: Add SoC USB APIs for adding an USB
 backend



On 1/16/25 3:28 PM, Wesley Cheng wrote:
> diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
> index 5efba76abb31..d34b4fdb2930 100644
> --- a/sound/soc/Kconfig
> +++ b/sound/soc/Kconfig
> @@ -84,6 +84,16 @@ config SND_SOC_UTILS_KUNIT_TEST
>  config SND_SOC_ACPI
>  	tristate
>  
> +config SND_SOC_USB
> +	tristate "SoC based USB audio offloading"
> +	depends on SND_USB_AUDIO
> +	help
> +	  Enable this option if an ASoC platform card has support to handle
> +	  USB audio offloading.  This enables the SoC USB layer, which will
> +	  notifies the ASoC USB DPCM backend DAI link about available USB audio

	Either
	  which will notify
	or
	  which notifies

> +	  devices.  Based on the notifications, sequences to enable the audio
> +	  stream can be taken based on the design.

-- 
~Randy