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Message-ID: <2abb6c0b-ea66-4649-b205-bafe49340aee@linux.intel.com>
Date: Mon, 5 Feb 2024 09:20:20 +0100
From: Amadeusz Sławiński
 <amadeuszx.slawinski@...ux.intel.com>
To: Wesley Cheng <quic_wcheng@...cinc.com>, srinivas.kandagatla@...aro.org,
 mathias.nyman@...el.com, perex@...ex.cz, conor+dt@...nel.org,
 corbet@....net, lgirdwood@...il.com, andersson@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, gregkh@...uxfoundation.org,
 Thinh.Nguyen@...opsys.com, broonie@...nel.org, bgoswami@...cinc.com,
 tiwai@...e.com, robh+dt@...nel.org, konrad.dybcio@...aro.org
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-sound@...r.kernel.org, linux-usb@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, linux-doc@...r.kernel.org,
 alsa-devel@...a-project.org
Subject: Re: [PATCH v13 20/53] ASoC: Add SOC USB APIs for adding an USB
 backend

On 2/3/2024 3:36 AM, Wesley Cheng wrote:
> Some platforms may have support for offloading USB audio devices to a
> dedicated audio DSP.  Introduce a set of APIs that allow for management of
> USB sound card and PCM devices enumerated by the USB SND class driver.
> This allows for the ASoC components to be aware of what USB devices are
> available for offloading.
> 
> Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
> ---

..

> +
> +/**
> + * snd_soc_usb_add_port() - Add a USB backend port
> + * @dev: USB backend device
> + * @priv: private data
> + * @connection_cb: connection status callback
> + *
> + * Register a USB backend device to the SND USB SOC framework.  Memory is
> + * allocated as part of the USB backend device.
> + *
> + */
> +int snd_soc_usb_add_port(struct snd_soc_usb *usb)
> +{
> +
> +

Cosmetic, but why is there white space between start of function and 
body of function?

> +	mutex_lock(&ctx_mutex);
> +	list_add_tail(&usb->list, &usb_ctx_list);
> +	mutex_unlock(&ctx_mutex);
> +
> +	return 0;
> +}
> +EXPORT_SYMBOL_GPL(snd_soc_usb_add_port);
> +


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