snd_hda_mixe...p_volume_get(9)
π snd_hda_mixer_amp_volume_get π
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. π
β¨ NAME β¨
snd_hda_mixer_amp_volume_get β the Get callback for a standard AMP mixer volume. that's the whole vibe. π¦
πΈ SYNOPSIS πΈ
int snd_hda_mixer_amp_volume_get (struct snd_kcontrol *kcontrol , struct
snd_ctl_elem_value *ucontrol );
π ARGUMENTS π
kcontrolβ the ctl element. yes, that one. the control. π«Άucontrolβ pointer to get/store the data. it's giving "the place the data lives", and honestly? we love that for it. π
π DESCRIPTION π
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. β¨
fr fr, that "supposed to" is load-bearing β the element needsprivate_valueset up throughHDA_COMPOSE_AMP_VAL*()(or the related macros) or this whole situation does not work. π
π¦ SEE ALSO π¦
kernel file ./sound/hda/common/codec.c β go read it, i believe in you π β plus literally all of these:
snd_hda_sequence_write(9)snd_hda_get_conn_list(9)snd_hda_get_connections(9)snd_hda_override_conn_list(9)snd_hda_get_conn_index(9)snd_hda_get_num_devices(9)snd_hda_get_devices(9)snd_hda_get_dev_select(9)snd_hda_set_dev_select(9)snd_hda_codec_set_pincfg(9)snd_hda_codec_get_pincfg(9)snd_hda_codec_set_pin_target(9)snd_hda_codec_get_pin_target(9)snd_hda_shutup_pins(9)snd_hda_codec_cleanup_for_unbind(9)snd_hda_codec_register(9)snd_hda_codec_unregister(9)snd_hda_codec_device_init(9)snd_hda_codec_new(9)snd_hda_codec_update_widgets(9)snd_hda_codec_setup_stream(9)__snd_hda_codec_cleanup_stream(9)query_amp_caps(9)snd_hda_check_amp_caps(9)snd_hda_override_amp_caps(9)snd_hda_codec_amp_update(9)snd_hda_codec_amp_stereo(9)snd_hda_codec_amp_init(9)snd_hda_codec_amp_init_stereo(9)snd_hda_mixer_amp_volume_info(9)snd_hda_mixer_amp_volume_put(9)snd_hda_mixer_amp_tlv(9)snd_hda_set_vmaster_tlv(9)snd_hda_find_mixer_ctl(9)snd_hda_ctl_add(9)snd_hda_ctls_clear(9)snd_hda_lock_devices(9)snd_hda_unlock_devices(9)snd_hda_codec_reset(9)__snd_hda_add_vmaster(9)snd_hda_add_vmaster_hook(9)snd_hda_sync_vmaster_hook(9)snd_hda_mixer_amp_switch_info(9)snd_hda_mixer_amp_switch_get(9)snd_hda_mixer_amp_switch_put(9)snd_hda_create_dig_out_ctls(9)snd_hda_spdif_out_of_nid(9)snd_hda_spdif_ctls_unassign(9)snd_hda_spdif_ctls_assign(9)snd_hda_create_spdif_share_sw(9)snd_hda_create_spdif_in_ctls(9)snd_hda_codec_set_power_to_all(9)snd_hda_codec_eapd_power_filter(9)snd_hda_codec_prepare(9)snd_hda_codec_cleanup(9)snd_hda_add_new_ctls(9)snd_hda_codec_set_power_save(9)snd_hda_set_power_save(9)snd_hda_check_amp_list_power(9)snd_hda_input_mux_info(9)snd_hda_input_mux_put(9)snd_hda_enum_helper_info(9)snd_hda_multi_out_dig_open(9)snd_hda_multi_out_dig_prepare(9)snd_hda_multi_out_dig_cleanup(9)snd_hda_multi_out_dig_close(9)snd_hda_multi_out_analog_open(9)snd_hda_multi_out_analog_prepare(9)snd_hda_multi_out_analog_cleanup(9)snd_hda_get_default_vref(9)snd_hda_correct_pin_ctl(9)_snd_hda_set_pin_ctl(9)snd_hda_add_imux_item(9)snd_hda_bus_reset_codecs(9)snd_hda_codec_set_gpio(9)snd_print_pcm_bits(9)
like, that's a whole friend group and every single one of them made it to the list. main character energy all around. π₯
π 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. π§ββοΈβ¨
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms