snd_card_add_dev_attr(9)

✨ snd_card_add_dev_attr ✨

okay so bestie, welcome to the snd_card_add_dev_attr(9) page — it's a Kernel API Manual situation, and it's literally the glow-up your sound card's sysfs presence deserves 🎀

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💖 NAME 💖

snd_card_add_dev_attr — append a brand new sysfs attribute group to a card 🦋

like, you're not replacing anything, you're appending, and that's the whole vibe. periodt.

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🌸 SYNOPSIS 🌸

int snd_card_add_dev_attr (struct snd_card *card , const struct
attribute_group *group );

no cap, that's the whole signature. two args, one int coming back at you 💅

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🫶 ARGUMENTS 🫶

• card — the card instance in question, your main character 🌟
• group — the attribute group you wanna append, the little entourage it brings along 🧚

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⭐ RETURN ⭐

zero if it worked (slay ✨), or a negative error code if it didn't (😭). that's it, that's the return value.

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🔥 SEE ALSO 🔥

the kernel file in question is ./sound/core/init.c — that's where the lore lives, iykyk. and here's the whole friend group of related pages, all of them, no skips:

• 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_register(9)
• snd_component_add(9)
• snd_card_file_add(9)
• snd_card_file_remove(9)
• snd_power_ref_and_wait(9)
• snd_power_wait(9)

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and that's the page, bestie!! 💖✨🎀 this icon came from ./sound/core, dated October 2026 — gotta give credit where credit is due, mwah 💜🦋