[pulseaudio-discuss] Cannot start Pulse Audio when using ALSA plug-in as sound source

[Krzysztof Cieniawski]

I have added `hint` field in `/usr/share/alsa/alsa.conf.d/iopdm.conf` file
where I have configuration of my plug-in and when I list pcm's with hints
it shows up.


pt., 9 sie 2019 o 15:56 Russell Treleaven <rtreleaven at bunnykick.ca>
napisał(a):

> `aplay -L` lists pcm's with hints.
> If you add a hint to your pcm does it show up in the output of `aplay -L` ?
>
> On Fri, Aug 9, 2019 at 9:32 AM Krzysztof Cieniawski <kcieniawski at gmail.com>
> wrote:
>
>> Hello!
>>
>> I am developing ALSA plug-in based on ALSA PCM External Plugin SDK.
>> Plug-in is source plug and has to convert PDM signal from microphone input
>> to PCM used by Linux. I have succeeded to compile it using cmake and I have
>> copied it to ALSA lib directory. I have updated *.asoundrc* file and
>> make right PCM connection. I am able to record sound using this plug-in
>> with *arecord* command. Unfortunatelly when I start *PulseAudio* server
>> I got error message:
>>
>> I: [pulseaudio] (alsa-lib)dlmisc.c: Cannot open shared library /usr/lib/aarch64-linux-gnu/alsa-lib/libasound_module_pcm_iopdm.so
>> I: [pulseaudio] alsa-util.c: Error opening PCM device temp: No such device or address
>> E: [pulseaudio] module.c: Failed to load module "module-alsa-source" (argument: "device=temp"): initialization failed.
>> E: [pulseaudio] main.c: Module load failed.
>> E: [pulseaudio] main.c: Failed to initialize daemon.
>>
>> I would like to use PulseAudio on top of my device because I am using
>> Amazon Alexa which use PulseAudio. How to get things right? Where is the
>> problem? If there is other solution available I would be grateful for it to.
>> On the path given in this error message there is this plug-in.
>>
>> I would be very grateful for any help!
>>
>> Regards,
>>
>> Krzysztof Cieniawski
>> _______________________________________________
>> pulseaudio-discuss mailing list
>> pulseaudio-discuss at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
>
>
>
> --
> Sincerely,
>
> Russell Treleaven
> sip:rtreleaven at sip.bunnykick.ca;transport=tcp
>
> _______________________________________________
> pulseaudio-discuss mailing list
> pulseaudio-discuss at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
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