snd_hda_mult...alog_prepare(9)
π snd_hda_mult...alog_prepare(9)
hiii bestie π«Ά welcome to the Kernel API Manual β yes the title up top got truncated with ... like it's shy or something, but it's the one and only snd_hda_mult...alog_prepare(9) and we're gonna get into it. no cap.
β¨ NAME β¨
snd_hda_multi_out_analog_prepare β Preapre the analog outputs.
(and yes the original literally says "Preapre" π not me fixing it, we don't do that here, the typo is canon π )
πΈ SYNOPSIS πΈ
int snd_hda_multi_out_analog_prepare (struct hda_codec *codec , struct
hda_multi_out *mout , unsigned int stream_tag , unsigned int format ,
struct snd_pcm_substream *substream );
okay so it's a function, it takes five things, and it returns an int. slay. π
π¦ ARGUMENTS π¦
like five whole besties walk into a function call:
codecβ the HDA codec. this is the codec, the main character πmoutβ anhda_multi_outobject. that's your multi-out situationstream_tagβ the stream tag to assign π·οΈformatβ the format id to assign. yes, another thing being assigned, we stay assigningsubstreamβ the PCM substream to assign π§
β DESCRIPTION β
so what does it do? Set up the i/o for analog out. that's the whole vibe. π₯
and here's the little extra the docs throw in: when the digital out is available, copy the front out to digital out, too. like, if digital's in the group chat, front out gets forwarded there as well. periodt. β¨
π SEE ALSO π
bestie there is a WHOLE friend group here, and we are not leaving anybody out of the mentions. first up, the location:
- Kernel file
./sound/hda/common/codec.c
then the entire squad, all of them (9) pages, all of them invited: π
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_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_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 I said. everybody. nobody gets left on read π
π and that's the whole page bestie β that's genuinely everything the manpage had to say, so go forth and set up that analog i/o, you're gonna do amazing π
mwah, ily, this one came from ./sound/hda/common and it's dated October 2026 β so yeah, it's giving future, it's giving timeless, it's giving snd_hda_mult...alog_prepare(9) forever and always. πΈπ¦β¨
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