STRUCT SST_BLOCK(9)

🎀 struct sst_block(9) 🎀

okay so bestie, welcome to the Kernel API Manual — today's main character is struct sst_block, and honestly? she's a whole vibe. 💅

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✨ NAME ✨

struct sst_block — literally the structure used to block a user/fw data call to another fw/user call. that's it, that's her job, and she does it flawlessly. no cap. 🫶

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🌸 SYNOPSIS 🌸

struct sst_block {
    bool condition;
    int ret_code;
    void *data;
    u32 size;
    bool on;
    u32 msg_id;
    u32 drv_id;
    struct list_head node;
 };

look at that struct. iconic. every field accounted for, not a single one skipped, we love a complete layout. ✨

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💖 Members 💖

• condition — the condition for the blocking check. yes bestie, she's checking whether we block or not. 👑
• ret_code — the ret code that gets handed back when the block is released. it's giving "here's your receipt, you're free to go". 🧾
• data — data ptr. just a pointer to the data, doing pointer things. 🦋
• size — size of data. the whole "how much" of the situation. 📏
• on — block condition. the on/off of the blocking vibe check. 🔥
• msg_id — lowkey the important one: msg_id = msgid in mfld/ctp, mrfld = NULL. keeping that exactly as written, don't come for me. 💀
• drv_id — str_id in mfld/ctp, = drv_id in mrfld. fr fr, that's the mapping, memorize it. 🌈
• node — list head node. every struct needs a little linked-list moment. ⭐

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🦋 SEE ALSO 🦋

• Kernel file ./sound/soc/intel/atom/sst/sst.h struct stream_info(9)
• struct sst_fw_header(9)
• struct fw_module_header(9)
• struct fw_block_info(9)
• struct intel_sst_drv(9)

go read those next, bestie, it's the whole friend group and they all slay. 💜

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ngl this page is short but she's still the moment. treat your blocking checks with respect and she'll treat you right. 🎀

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and that's the tea! 🍓 this lil' page came from ./sound/soc/intel/atom/sst, dated October 2026 — screenshot it, cite it, tag me in it. mwah! 💋✨👑