linux-kernel - Re: [PATCH v5 12/32] sound: usb: Export USB SND APIs for modules

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Message-ID: <6a7ff8ae-1ce5-84a9-8cec-b785e88b6fda@quicinc.com>
Date:   Mon, 11 Sep 2023 10:58:45 -0700
From:   Wesley Cheng <quic_wcheng@...cinc.com>
To:     Takashi Iwai <tiwai@...e.de>
CC:     <srinivas.kandagatla@...aro.org>, <mathias.nyman@...el.com>,
        <perex@...ex.cz>, <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>,
        <agross@...nel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <quic_jackp@...cinc.com>, <quic_plai@...cinc.com>
Subject: Re: [PATCH v5 12/32] sound: usb: Export USB SND APIs for modules

Hi Takashi,

On 9/7/2023 8:38 AM, Takashi Iwai wrote:
> On Tue, 29 Aug 2023 23:06:37 +0200,
> Wesley Cheng wrote:
>> -/*
>> - * hw_params callback
>> - *
>> - * allocate a buffer and set the given audio format.
>> - *
>> - * so far we use a physically linear buffer although packetize transfer
>> - * doesn't need a continuous area.
>> - * if sg buffer is supported on the later version of alsa, we'll follow
>> - * that.
>> - */
>> -static int snd_usb_hw_params(struct snd_pcm_substream *substream,
>> -			     struct snd_pcm_hw_params *hw_params)
>> +int snd_usb_attach_endpoints(struct snd_usb_substream *subs,
>> +				struct snd_pcm_hw_params *hw_params)
> 
> This doesn't only "attach" endpoints, but it does more other things
> that are needed for PCM hw_params procedure.  I'd rather keep
> hw_params in the function name instead of creating completely
> different one.
> 
> Ditto for hw_free.
> 

Sure I'll keep the same nomenclature as it was previously.

Thanks
Wesley Cheng