sof_comp_alloc(9)

💅 sof_comp_alloc(9) — Kernel API Manual ✨

okay bestie, welcome to sof_comp_alloc(9), straight out of the Kernel API Manual 📖 — no cap, this is the one that snags you a fresh buffer for a brand-new component. 🎀

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🌸 NAME 🌸

sof_comp_alloc — allocate and initialize buffer for a new component 💖

like, it literally hands you the memory AND sets it up. main character behavior fr.

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✨ SYNOPSIS ✨

void * sof_comp_alloc (struct snd_sof_widget *swidget , size_t *ipc_size
, int index );

three args, one pointer back out. slay. 🫶

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🦋 ARGUMENTS 🦋

• swidget — pointer to struct snd_sof_widget containing extended data 👑 this is the widget in question, extended data and all.
• ipc_size — the IPC payload size, and listen 👀 it gets updated depending on valid extended data. so it's not just an input, it's giving input/output energy. 💀
• index — the ID of the pipeline the component belongs to 🧵 iykyk.

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⭐ RETURN ⭐

• The pointer to the new allocated component 💅
• NULL if it failed 😭 (rip, but at least you know)

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🌈 SEE ALSO 🌈

• Kernel file ./sound/soc/sof/ipc3-topology.c — go read it, it's iconic. 📂

ngl, if you're poking around in SOF topology code, this is your girl. take the pointer, respect the NULL, and vibe check your ipc_size after the call. 💜

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and that's a wrap, bestie 🎀 mwah 💋 — brought to you by ./sound/soc/sof, October 2026 edition. periodt. ✨🦋