ipc3_probes_init(9)

💖 ipc3_probes_init(9) 💖

okay bestie, welcome to the Kernel API Manual corner ✨ this one is literally all about ipc3_probes_init, and we are gonna get you comfy with it 🫶

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🌸 NAME 🌸

ipc3_probes_init — initialize data probing 💅 that’s the vibe, that’s the whole point, periodt.

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💫 SYNOPSIS 💫

       int ipc3_probes_init (struct sof_client_dev *cdev , u32 stream_tag ,
       size_t buffer_size );

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🎀 ARGUMENTS 🎀

• cdev — the SOF client device, aka the device bestie we’re working with 🫶
• stream_tag — the extractor stream tag, no cap 🎯
• buffer_size — the DMA buffer size to set for extractor; literally the size you’re setting for the extractor 🧚

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🦋 DESCRIPTION 🦋

so the host is the one choosing whether extraction is supported or not — and it does that by providing a valid stream tag to the DSP ✨ once that tag is specified, the stream described by that tag gets tied to the DSP for extraction for the entire lifetime of probe 👑 that’s the whole deal, iykyk.

probing is initialized only once bestie, and each INIT request must be matched by a DEINIT call 🙈 don’t leave it hanging, fr fr.

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🌈 SEE ALSO 🌈

• Kernel file ./sound/soc/sof/sof-client-probes-ipc3.c — go peek at it, bestie 📖
• ipc3_probes_deinit(9)
• ipc3_probes_points_info(9)
• ipc3_probes_points_add(9)
• ipc3_probes_points_remove(9)

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and that’s the page, bestie 💅 the source/version is ./sound/soc/sof and the date is October 2026 🎀 mwah 🫶✨