snd_hda_shutup_pins(9)
β¨ snd_hda_shutup_pins β shut UP, pins π
okay so bestie, welcome to the snd_hda_shutup_pins(9) page, straight outta the Kernel API Manual π this one is short and sweet and honestly kind of iconic β it's the "everybody quiet, we're going to sleep" function for your HDA codec's pins. no notes. let's get into it π
πΈ NAME πΈ
snd_hda_shutup_pins β shut up all pins π€«
like, all of them. every single pin. silence era.
π¦ SYNOPSIS π¦
void snd_hda_shutup_pins (struct hda_codec *codec );
that's it. that's the whole signature. void return, one argument, no drama β¨
π ARGUMENTS π
codecβ the HDA codec π literally the thing you're telling to hush. that's the one. that's the codec.
π DESCRIPTION π
so here's the tea: this function clears all pin controls to shut up before suspend, and the whole point is avoiding click noise π like you know that little pop or click you hear when your audio goes down for a nap? yeah. this is the anti-click. the vibe check for your speakers before they go to sleep π
and the detail that actually matters, bestie, is this: the controls aren't cached, so that they can be resumed properly later π₯ like yeah, it looks like it's throwing away information, but no β that's the whole design. not caching means the resume path can do its thing correctly. it's giving intentional. it's giving main character energy π
ngl "shup up" is literally how the original spells it in the description and honestly? we're keeping the energy. the pins are being told to shup up. periodt π«Ά
π SEE ALSO π
okay this list is long β like a full group chat roster β but every single one of these is a real reference and we are not skipping a single bestie π
kernel file ./sound/hda/common/codec.c, plus:
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_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_get(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)
yeah. seventy-something entries. she ate and left no crumbs π
π§ sign-off π§
that's the whole page, bestie!! π this lil number lives in ./sound/hda/common, dated October 2026, and it goes by snd_hda_shutup_pins(9) β go forth and mute your pins responsibly πβ¨π
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