[alsa-devel] How to create a proc entry for an ASoc codec?
liam.r.girdwood at linux.intel.com
Fri Apr 11 11:28:47 CEST 2014
On Fri, 2014-04-11 at 10:16 +0100, Lin, Mengdong wrote:
> How to create a proc entry for an ASoc codec under the sound card?
> We hope to create an proc entry for an I2S codec
> under /proc/asound/cardx, to debug the codec status at runtime.
> So after the machine driver calls snd_soc_register_card(&soc_card), I
> calls snd_card_proc_new(soc_card .snd_card, ….)
> But no codec entry is created although dmesg shows this function
> How ASoC creates the proc entries such as ‘id’ for the sound card?
You should see this :-
ASoC exposes sound card specific data under the sysfs entry for the
Capture PCM/ driver/ modalias Offload1/ sound/ System PCM/
Codec/ Loopback PCM/ Offload0/ power/ subsystem/ uevent
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