virtsnd_chmap_parse_cfg(9)

✨ virtsnd_chmap_parse_cfg(9) ✨

okay bestie, welcome to the Kernel API Manual 💖 this one's a little kernel function from the VirtIO sound world and she's honestly so cute and lowkey simple. let's get into it 🎀

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🌸 NAME 🌸

virtsnd_chmap_parse_cfg — parse the channel map configuration. that's it, that's the whole vibe. she parses. she configures. she slays 💅

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🦋 SYNOPSIS 🦋

int virtsnd_chmap_parse_cfg (struct virtio_snd *snd );

yes that's the whole signature, no cap. returns an int, takes one pointer, done ✨

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🎀 ARGUMENTS 🎀

• snd — the VirtIO sound device. that's your main character right there 👑 she's a struct virtio_snd * and the function is gonna do her channel-map homework for her 🫶

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💜 DESCRIPTION 💜

so basically this function gets called during initial device initialization. like, right at the beginning, before the device really knows what's up. it's giving "first day of school, gotta figure out the seating chart" energy 🪑✨

it parses the channel map configuration. that's the whole job. iconic honestly 🌈

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🌟 CONTEXT 🌟

any context that permits to sleep 😴 — which like, fair warning bestie, that means you can't just call her from anywhere. if the context doesn't permit sleeping, she's not the one. vibe check first fr fr 💀

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⭐ RETURN ⭐

• 0 on success — we love a win 🎉
• -errno on failure — 😭 that's a negative errno value, so like, check it before you celebrate, okay?

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🔥 SEE ALSO 🔥

• the kernel file ./sound/virtio/virtio_chmap.c — go read the source, iykyk 📖
• virtsnd_chmap_add_ctls(9) — the next chapter of the chmap saga 🧚
• virtsnd_chmap_build_devs(9) — and the one after that 💫

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okay real talk bestie, she's a small function but she matters. don't skip the return value check. i'm literally begging 🙈

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that's the whole page!! from ./sound/virtio, dated October 2026, with the header title virtsnd_chmap_parse_cfg(9) and the manual name Kernel API Manual — mwah, go forth and parse those channel maps, you absolute legend 💖🍓🧚✨