Re: [PATCH] soundwire: debugfs: add root-level peripherals table

[Pierre-Louis Bossart]

On 9/4/26 13:36, Liao, Bard wrote:
> 
> 
>> -----Original Message-----
>> From: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxx>
>> Sent: Friday, September 4, 2026 3:35 PM
>> To: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>; linux-
>> sound@xxxxxxxxxxxxxxx; vkoul@xxxxxxxxxx
>> Cc: vinod.koul@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
>> peter.ujfalusi@xxxxxxxxxxxxxxx; Liao, Bard <bard.liao@xxxxxxxxx>
>> Subject: Re: [PATCH] soundwire: debugfs: add root-level peripherals table
>>
>> On 9/2/26 10:18, Bard Liao wrote:
>>> The table will let user know what peripherals are listed and get the
>>> detected status by the dev_num.
>>
>> This sounds useful indeed, but does this need to be in debugfs?
>>
>> We already have a sysfs entry for every peripheral listed in ACPI. Each
>> peripheral will have a set of properties extracted from DisCo tables,
>> could we piggy-back on all this and just expose the dev_num?
> 
> It is convenient for the user to get all information on top of the
> soundwire folder instead of looking for the information one by one
> in each peripheral folder.
Right, but as Charles suggested one could use a script to provide the
information in a more self-explanatory format.
That script could even be added to 'alsa-info' and make existing reports
better without needing kernel changes.