snd_hda_mixe...p_volume_get(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’– snd_hda_mixer_amp_volume_get πŸ’–

okay so bestie, welcome to the Kernel API Manual page for snd_hda_mixer_amp_volume_get β€” yes that whole giant name, we're doing it, we're staying hydrated, we're reading the docs. This one is the get callback for a standard AMP mixer volume, and it's lowkey iconic in a "quietly holds the audio together" way. πŸŽ€


✨ NAME ✨

snd_hda_mixer_amp_volume_get β€” the Get callback for a standard AMP mixer volume. that's the whole vibe. πŸ¦‹


🌸 SYNOPSIS 🌸

int snd_hda_mixer_amp_volume_get (struct snd_kcontrol *kcontrol , struct
       snd_ctl_elem_value *ucontrol );

πŸŽ€ ARGUMENTS πŸŽ€

  • kcontrol β€” the ctl element. yes, that one. the control. 🫢
  • ucontrol β€” pointer to get/store the data. it's giving "the place the data lives", and honestly? we love that for it. πŸ’…

πŸ‘‘ DESCRIPTION πŸ‘‘

so here's the tea: the control element is supposed to have its private_value field set up via HDA_COMPOSE_AMP_VAL*() or the related macros. that's the assignment, bestie β€” private_value gets its glow-up from HDA_COMPOSE_AMP_VAL*() or friends, and then this callback can actually do its job. no cap. ✨

fr fr, that "supposed to" is load-bearing β€” the element needs private_value set up through HDA_COMPOSE_AMP_VAL*() (or the related macros) or this whole situation does not work. πŸ™ˆ

πŸ¦‹ SEE ALSO πŸ¦‹

kernel file ./sound/hda/common/codec.c β€” go read it, i believe in you πŸ’– β€” plus literally all of these:

like, that's a whole friend group and every single one of them made it to the list. main character energy all around. πŸ”₯


πŸ’œ that's the page!! this little gem lives in ./sound/hda/common and it's dated October 2026, so go ahead and cite it with confidence β€” snd_hda_mixer_amp_volume_get(9), periodt. mwah, study hard, hydrate, and may your private_value always be composed. πŸ§šβ€β™€οΈβœ¨

πŸ“¦ where this page comes from