snd_hda_get_connections(9)

💖 NAME

okay bestie, welcome to the Kernel API Manual page for snd_hda_get_connections(9) — aka the one that will copy connection list for you. 💅

✨ SYNOPSIS ✨

int snd_hda_get_connections (struct hda_codec *codec , hda_nid_t nid ,
hda_nid_t *conn_list , int max_conns );

🎀 ARGUMENTS 🎀

• codec — the HDA codec. yes, that codec. 🫶
• nid — the NID to parse. that's the node bestie, go parse it. ✨
• conn_list — the connection list array; when it's NULL, it checks only the size. lowkey handy.
• max_conns — max. number of connections to store. don't overflow the vibe check. 💀

🦋 DESCRIPTION 🦋

So what it does: it parses the connection list of the given widget and stores the list of NIDs. iconic behavior, honestly.

It returns the number of connections, or a negative error code. that's it, that's the whole plot. 🌸

🌈 SEE ALSO 🌈

the whole HDA friend group is linked here — go say hi:

• kernel file: ./sound/hda/common/codec.c — the actual home of this code
• snd_hda_sequence_write(9)
• snd_hda_get_conn_list(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_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)

and that’s the page, bestie 💖 source/version: ./sound/hda/common · date: October 2026 · page: snd_hda_get_connections(9) ✨👑