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From: Takashi Iwai <tiwai@suse.de>
To: sylvain.bertrand@gmail.com
Cc: alsa-devel@alsa-project.org
Subject: Re: right way to enumerate pcm devices
Date: Tue, 12 Feb 2019 14:36:00 +0100	[thread overview]
Message-ID: <s5hr2cd3z9b.wl-tiwai@suse.de> (raw)
In-Reply-To: <20190212123333.GB6441@freedom>

On Tue, 12 Feb 2019 13:33:33 +0100,
sylvain.bertrand@gmail.com wrote:
> 
> Hi,
> 
> I got some code based on hints which, unfortunately, seems not sufficient.
> 
> I can list the hardware cards, but what is the proper way to enumerate the pcm devices?

Parsing the hints is the right way.

> For instance, I don't get basic user defined pcm devices, I get all the
> surround pcm devices for the USB mic from my webcam etc...

The entries without hints are filtered out as default.
i.e. a user-defined entry appears, too, if it contains the hints.

You can change the behavior by setting defaults.namehint.showall,
too.


HTH,

Takashi

> The real question: how I build a clean list of pcm devices I would present to a
> user to choose from without confusing him/her?
> 
> Wherever I look I get only this hint based code. I presume I am looking the
> wrong way.
> 
> regards,
> 
> -- 
> Sylvain
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> 

  reply	other threads:[~2019-02-12 13:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-12 12:33 right way to enumerate pcm devices sylvain.bertrand
2019-02-12 13:36 ` Takashi Iwai [this message]
2019-02-12 20:33   ` sylvain.bertrand
2019-02-13  6:25     ` Takashi Iwai
2019-02-13 14:13       ` sylvain.bertrand
2019-02-13 14:33         ` Takashi Iwai
2019-02-13 14:38         ` Jaroslav Kysela
2019-02-13 22:25         ` sylvain.bertrand
2019-02-13 22:43           ` sylvain.bertrand
     [not found]             ` <CA+Owze4OqfSystQ5ZNaF6sO+L-L-FceN5XBPJkqyYf7zjkp+GQ@mail.gmail.com>
2019-02-13 23:11               ` Fwd: " Joël Krähemann
2019-02-14 13:12                 ` sylvain.bertrand

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