snd_component_add(9)

💅 snd_component_add(9) — from the Kernel API Manual 🎀

ok bestie, gather round, because we're about to make friends with snd_component_add, one of the little kernel-API girlies from the Kernel API Manual. she's small, she's sweet, she does exactly one thing, and honestly? iconic.

---

✨ NAME ✨

snd_component_add — add a component string 🦋

like, literally just add a component string. that's the whole job. she's not complicated and we love her for it.

---

🌸 SYNOPSIS 🌸

int snd_component_add (struct snd_card *card , const char *component );

there she is. two args, one int coming back at you. no cap. 💜

---

🎀 ARGUMENTS 🎀

• card — the soundcard structure, aka the soundcard you're working with. this is the main character here. 👑
• component — the component id string 💫 that's the thing you're adding, bestie. the component id. the string. keep up.

---

💖 DESCRIPTION 💖

okay so here's the vibe check: this function adds the component id string to the supported list. that's it. that's the function. 🫶

and why do we care? because the component can be referred from the alsa-lib. so like, alsa-lib can look it up later. it's giving "networking but make it sound cards". iykyk. 🌈

---

🔥 RETURN 🔥

she returns zero ✨ — or, if things go sideways, a negative error code 😭. so like, 0 = slay, negative = not slay. check it, bestie, don't just assume. 💀

---

🧚 SEE ALSO 🧚

kernel file ./sound/core/init.c — go read her, she's right there, that's where the magic lives 📖✨

and then the whole friend group, because snd_component_add does not exist in a vacuum:

• snd_device_alloc(9)
• snd_card_new(9)
• snd_devm_card_new(9)
• snd_card_free_on_error(9)
• snd_card_ref(9)
• snd_card_disconnect(9)
• snd_card_disconnect_sync(9)
• snd_card_free_when_closed(9)
• snd_card_free(9)
• snd_card_set_id(9)
• snd_card_add_dev_attr(9)
• snd_card_register(9)
• snd_card_file_add(9)
• snd_card_file_remove(9)
• snd_power_ref_and_wait(9)
• snd_power_wait(9)

like genuinely that's a whole group chat and every single one of them is invited. 💅

---

ngl the return value is the only gotcha here — zero is the good ending, negative is the "check errno-adjacent energy" ending. no invented lore, just facts. 🍓

---

and that's the whole page, bestie!! 🌸 source: ./sound/core, version date: October 2026, and the page itself is snd_component_add(9) — mwah, sending you off with a kiss and a man 9 snd_component_add 💋🎀✨