How do I find the "ASCII identifier of the PCM handle" for ALSA?

8 months ago by ZILtoid1991 to c/learn_programming

There's this snd_pcm_open() function, and one of its arguments takes "ASCII identifier of the PCM handle". How can I get it for each individual devices?

Gyroplast 2 points 8 months ago

I'd have a look at the aplay.c implementation for listing PCM device names (-L), pcm_list().

It's basically using snd_device_name_hint(-1, "pcm", &hints) and snd_device_name_get_hint() calls to discover the PCM device names.

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