Re: [PATCH v21 26/39] ASoC: qcom: qdsp6: Add support to track available USB PCM devices

[Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>]

On 5/8/24 18:57, Wesley Cheng wrote:
> Hi Pierre,
> 
> On 5/7/2024 2:23 PM, Pierre-Louis Bossart wrote:
>>
>>> @@ -113,6 +120,12 @@ static int q6usb_alsa_connection_cb(struct
>>> snd_soc_usb *usb,
>>>       if (connected) {
>>>           /* We only track the latest USB headset plugged in */
>>>           data->active_usb_chip_idx = sdev->card_idx;
>>> +
>>> +        set_bit(sdev->card_idx, &data->available_card_slot);
>>> +        data->status[sdev->card_idx].sdev = sdev;
>>
>> Not following the 'only track the latest USB headset plugged in', I
>> don't see anything that discard the previously latest headset...
>>
>> If you plug headset1, then headset2, how is headset1 marked as not
>> available for USB offload?
>>
> 
> It won't mark headset1 as not available for offload, because offload
> could happen on either depending on what is selected (from the kcontrol
> as well).

Right, so the wording 'only track the latest USB headset plugged in' is
incorrect or obsolete, isn't it?