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How do I find the "ASCII identifier of the PCM handle" for ALSA? (lemmy.world)
submitted 3 days ago by ZILtoid1991@lemmy.world to c/learn_programming@programming.dev
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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?

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[-] Gyroplast@pawb.social 2 points 3 days 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.

this post was submitted on 23 Feb 2026
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