Re: [PATCH v24 10/34] ASoC: usb: Create SOC USB SND jack kcontrol

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Hi Pierre,

On 8/1/2024 1:07 AM, Pierre-Louis Bossart wrote:
>
>
>> +static inline int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component,
>> +						 struct snd_soc_jack *jack)
>> +{
>> +	return -ENODEV;
>> +}
>> +
>> +static inline int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component)
>> +{
>> +	return -ENODEV;
>> +}
> usually fallback functions return 0, is the error code intentional?
ACK.
>
>> +int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component,
>> +					struct snd_soc_jack *jack)
>> +{
>> +	int ret;
>> +
>> +	ret = snd_soc_card_jack_new(component->card, "USB Offload Playback Jack",
> do we need the reference to Playback?
No, will remove.
>> +					SND_JACK_HEADPHONE, jack);
> wondering if there would be any merit in defining a new type of jack,
> e.g. SND_JACK_USB since here the purpose is to notify that there's a USB
> device connected. The type of device does not really matter, does it?
>
Not as of now, but I think we discussed in the past that maybe depending on if playback and capture is supported, we can notify SND_JACK_HEADSET?  That is something I will need to change depending on how we want to handle the comments on patch#9

Thanks

Wesley Cheng

>> +	if (ret < 0) {
>> +		dev_err(component->card->dev, "Unable to add USB offload jack\n");
>> +		return ret;
>> +	}
>> +
>> +	ret = snd_soc_component_set_jack(component, jack, NULL);
>> +	if (ret) {
>> +		dev_err(component->card->dev, "Failed to set jack: %d\n", ret);
>> +		return ret;
>> +	}
>> +
>> +	return 0;



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