STRUCT SDW_INTEL_BPT(9)

🎀 struct sdw_intel_bpt(9) 🎀

okay bestie, welcome to the Kernel API Manual — this is the page for struct sdw_intel_bpt, and it's literally the SoundWire Intel BPT context. iykyk 💅

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✨ NAME ✨

struct sdw_intel_bpt — SoundWire Intel BPT context</p> 💖

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✨ SYNOPSIS ✨

struct sdw_intel_bpt {
    struct hdac_ext_stream *bpt_tx_stream;
    struct snd_dma_buffer dmab_tx_bdl;
    struct hdac_ext_stream *bpt_rx_stream;
    struct snd_dma_buffer dmab_rx_bdl;
    unsigned int pdi0_buffer_size;
    unsigned int pdi1_buffer_size;
    unsigned int num_frames;
    unsigned int data_per_frame;
 };

like, that's the whole vibe right there 👑 (yes there's a lil extra space before the closing brace in the original, we keep it fr fr, no cap)

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🦋 Members 🦋

so here's the cast of characters, one by one, main character energy only:

• bpt_tx_stream — the BPT TX stream 🫶 literally the transmit stream, that's it, that's the whole job
• dmab_tx_bdl — the BPT TX buffer descriptor list 📋 the TX-side buffer descriptor list, iconic
• bpt_rx_stream — the BPT RX stream 🌸 the receive stream — yes it's the mirror of the TX one, we love symmetry
• dmab_rx_bdl — the BPT RX buffer descriptor list 📋 and the RX-side buffer descriptor list, matching set, slay
• pdi0_buffer_size — PDI0 buffer size 📏 exactly what it says, no notes
• pdi1_buffer_size — PDI1 buffer size 📏 and the buffer size for PDI1, twin behaviour, obsessed
• num_frames — number of frames 🎞️ the count of frames, periodt
• data_per_frame — data per frame 🍓 how much data each frame carries, that's the tea

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/soundwire/intel.h 📁
• struct sdw_intel_link_res(9) 🔗 — go read that one next bestie, it's giving related

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💀 reminder bestie: this page is just the struct and what each member is. it's not out here making promises about behaviour, so don't go inventing any 🔥

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and that's the whole page, we ate and left zero crumbs 💅✨ this lil love letter lives under ./drivers/soundwire, dated October 2026, and yeah — it's struct sdw_intel_bpt(9) all the way down, mwah 🫶🎀