virtsnd_build_devs(9)

💖 virtsnd_build_devs(9) — the Kernel API Manual moment 🎀

okay so bestie, welcome to the Kernel API Manual entry for virtsnd_build_devs(9) and honestly? this one is a little main-character function. it reads the config, it builds the ALSA devices, it slays. let's get into it ✨

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🌸 NAME 🌸

virtsnd_build_devs — read configuration and build ALSA devices.</p> that's the whole vibe, no cap.

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🦋 SYNOPSIS 🦋

int virtsnd_build_devs (struct virtio_snd *snd );

literally the signature, character for character, don't @ me 💅

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🍓 ARGUMENTS 🍓

• snd — the VirtIO sound device. that's it, that's the whole argument. she's the main character of this call 🎀

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🧚 CONTEXT 🧚

any context that permits to sleep. so like — it can chill. it can nap. it can't run somewhere sleep is forbidden, periodt 😴

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⭐ RETURN ⭐

• 0 on success — we love a win 💖
• -errno on failure — she said "not today" and handed you back an error code 🙈

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👑 SEE ALSO 👑

the kernel file ./sound/virtio/virtio_card.c, plus the whole friend group, all listed right here so you never miss a connect:

• virtsnd_event_send(9)
• virtsnd_event_dispatch(9)
• virtsnd_event_notify_cb(9)
• virtsnd_find_vqs(9)
• virtsnd_enable_event_vq(9)
• virtsnd_disable_event_vq(9)
• virtsnd_validate(9)
• virtsnd_probe(9)
• virtsnd_remove(9)
• virtsnd_freeze(9)
• virtsnd_restore(9)

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💡 friendly reminder bestie: snd is a struct virtio_snd *, and the function returns int. keep those exact, they are not decorative 🫶

alright that's the page!! source lives in ./sound/virtio, dated October 2026, and it's still signed off as virtsnd_build_devs(9) because we respect the footer ✨💜 bye bestie, go build some devices 🎀