From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
To: Tanjeff Moos <tanjeff@cccmz.de>, alsa-devel@alsa-project.org
Subject: Re: How to identify Alsa eLements?
Date: Fri, 3 Jul 2020 09:48:50 +0900 [thread overview]
Message-ID: <20200703004850.GB349540@workstation> (raw)
In-Reply-To: <20200703003420.GA349540@workstation>
On Fri, Jul 03, 2020 at 09:34:20AM +0900, Takashi Sakamoto wrote:
> > My questions:
> > 1) Are name and index enough to identify an element?
>
> In ALSA control core, 'snd_ctl_find_id()' helper function[1] is used to
> find control element set by the given information from userspace
> application. You can see the algorithm supports two cases:
>
> 1. numid matching
> 2. the combination matching with:
> * iface
> * device
> * subdevice
> * name
> * index is within the range of set
I sent PR[1] to update the documentation in alsa-lib.
[1] https://github.com/alsa-project/alsa-lib/pull/66
Regards
Takashi Sakamoto
next prev parent reply other threads:[~2020-07-03 0:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 20:05 How to identify Alsa eLements? Tanjeff Moos
2020-07-03 0:34 ` Takashi Sakamoto
2020-07-03 0:48 ` Takashi Sakamoto [this message]
2020-07-03 6:16 ` Tanjeff Moos
2020-07-03 8:53 ` Takashi Sakamoto
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