snd_hda_get_pin_label(9)

💖 snd_hda_get_pin_label(9) 💖

okay so bestie, this is the Kernel API Manual, section 9 — the page for snd_hda_get_pin_label, and it's literally about getting a label for a pin. no cap, we're in HDA codec pin-label territory now 🎀

✨ NAME ✨

snd_hda_get_pin_label — get a label for the given I/O pin 💅

🦋 SYNOPSIS 🦋

       int snd_hda_get_pin_label (struct hda_codec *codec , hda_nid_t nid ,
       const struct auto_pin_cfg *cfg , char *label , int maxlen );

🌸 ARGUMENTS 🌸

• codec — the HDA codec, aka the codec we're working with 👑
• nid — pin NID, because yes we need the pin's NID
• cfg — the parsed pin configuration
• label — the string buffer to store 🫙
• maxlen — the max length of string buffer (including termination)

🧚 DESCRIPTION 🧚

so this function gets a label for the given pin. it works for both input and output pins — both, periodt. 💖

when cfg is given as non-NULL, the function tries to get an optimized label using hda_get_autocfg_input_label. that's the optimized-label moment ✨

this function tries to give a unique label string for the pin as much as possible. like, it's trying okay? for example, when the multiple line-outs are present, it adds the channel suffix like "Front", "Surround", etc — and that channel-suffix thing happens only when cfg is given. iykyk 🎀

🔥 SEE ALSO 🔥

• kernel file ./sound/hda/common/auto_parser.c
• snd_hda_get_input_pin_attr(9)
• hda_get_input_pin_label(9)
• hda_get_autocfg_input_label(9)
• snd_hda_add_verbs(9)
• snd_hda_apply_verbs(9)
• snd_hda_apply_pincfgs(9)
• snd_hda_apply_fixup(9)
• snd_hda_pick_pin_fixup(9)
• snd_hda_pick_fixup(9)

mwah 💋 — source/version: ./sound/hda/common; date: October 2026; page: snd_hda_get_pin_label(9). byeeee, go label those pins 🫶