STRUCT SOF_IPC4_PCM_STREAM_PRIV(9)

💖 struct sof_..._stream_priv(9) 💖

okay so welcome to the Kernel API Manual bestie, we're looking at struct sof_..._stream_priv(9) today and honestly? she's small but she's doing a lot 🎀 this is the IPC4-specific private data situation and you're gonna get it in like two minutes, fr fr.

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✨ NAME ✨

struct sof_ipc4_pcm_stream_priv — the IPC4 specific private data 🫶 that's it, that's the whole vibe.

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🌸 SYNOPSIS 🌸

struct sof_ipc4_pcm_stream_priv {
    struct sof_ipc4_timestamp_info *time_info;
    bool chain_dma_allocated;
 };

like… two members. two. and yet she's iconic 👑

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🦋 Members 🦋

• time_info — a pointer to the time info struct if it is supported, otherwise NULL. so if timestamps aren't a thing here, it's just NULL and we move on, no drama 💅
• chain_dma_allocated — a bool that indicates the ChainDMA allocation state ✨ like it literally tells you where the ChainDMA allocation is at. that's the whole job. she ate.

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🌈 SEE ALSO 🌈

• Kernel file ./sound/soc/sof/ipc4-pcm.c — go read the actual source, bestie, it's right there 👀
• struct sof_ipc4_timestamp_info(9) — the struct that time_info points at, iykyk 🔥

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ngl this one's short but don't sleep on it — if time_info can be NULL you gotta check before you dereference, no cap 😭 that's not me being extra, that's just how pointers work 💀

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and that's the page!! mwah 💖 this was the Kernel API Manual entry for struct sof_..._stream_priv(9), brought to you from ./sound/soc/sof, dated October 2026 ⭐ go forth and slay your IPC4 debugging, bestie 🧚‍♀️🌸