From: Variksla <variksla@gmail.com>
To: Lars-Peter Clausen <lars@metafoo.de>
Cc: "tiwai@suse.de" <tiwai@suse.de>,
"alsa-user@lists.sourceforge.net"
<alsa-user@lists.sourceforge.net>,
"alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
"omer.job@gmail.com" <omer.job@gmail.com>
Subject: Re: ASoC: Max98090 Codec DAPM Widget setup in Open Embedded
Date: Tue, 24 Mar 2015 09:02:40 -0700 [thread overview]
Message-ID: <1BBF0420-296C-435B-9208-5939803DAD57@gmail.com> (raw)
In-Reply-To: <551111C3.3000704@metafoo.de>
> On Mar 24, 2015, at 12:26 AM, Lars-Peter Clausen <lars@metafoo.de> wrote:
>
>> On 03/24/2015 07:54 AM, noman pouigt wrote:
>> On Mon, Mar 23, 2015 at 11:53 PM, noman pouigt <variksla@gmail.com> wrote:
>>>> I would like to know which file I can use to connect/enable
>>>> DPAM widgets permanently so a simple aplay/record can work?
>>>>
>>>> My environment is:
>>>> - Yocto Linux Kernel 3.10 - (DTS based)
>>>> - Max98090 Codec
>>>> - imx6SL SoC
>>>>
>>>> I thought about doing this in alsa.conf or asound.conf but I couldn't
>>>> find a single example with DAPM widgets .
>>>
>>> I am also stuck with the same problem. I am sure ALSA experts
>>> can help here.
>>>
>>> What i want to know is how to set the dapm widgets in open
>>> embedded? Is it alsa.conf or asound.conf ?
>>>
>>> I need to set something like this:
>>> amixer cset name="LEFT MIXER DAC" 1
>>>
>>> Using amixer i am able to playback but i don't know how can i
>>> modify conf file to have this dapm widgets associated with
>>> a device.
>>>
>>> Any example would suffice.
>
> Hi,
>
> The whole point of DAPM (dynamic audio power management) is that you don't have to manually power up or down a widget. Userspace configures the routing of the audio paths and the kernel automatically detects which parts of the chip need to be powered up for the current routing configuration.
>
> Why do you want to manually enable a widget?
In android we have ucm files where dapm routings are associated with each device. Same way where can I list down dapm routings in open embedded?
We know that user space gives the routings but we need to associate each device with certain set of dapm routes so i am looking for a place where we can list down dapm routes which gets triggered when a specific device is chosen for playback or recording. Something analogous to ucm files in open embedded? I couldn't find a way to associate dapm routes with a specific device in conf files. Can we use Asound.conf for this purpose?
>
> - Lars
>
next prev parent reply other threads:[~2015-03-24 16:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-24 6:54 ASoC: Max98090 Codec DAPM Widget setup in Open Embedded noman pouigt
2015-03-24 7:26 ` Lars-Peter Clausen
2015-03-24 16:02 ` Variksla [this message]
2015-03-25 7:22 ` Omer
-- strict thread matches above, loose matches on Subject: below --
2015-03-20 22:25 C. Omer Rafique
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