STRUCT BRCMF_BUSCORE_OPS(9)

💅 struct brcmf_buscore_ops(9) — like, the whole entire page 💅

okay so bestie, we're in the Kernel API Manual today and the main character is struct brcmf_buscore_ops. yes that's a mouthful, yes you're gonna say it right, i believe in you 🫶

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✨ NAME ✨

struct brcmf_buscore_ops — the buscore specific callbacks, periodt 💅

like, this struct is literally just a lil bundle of function pointers that the buscore hands over so somebody else can call back into it. it's giving "here's my number, text me" energy.

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🌸 SYNOPSIS 🌸

struct brcmf_buscore_ops {
    u32 (*read32)(void *ctx, u32 addr);
    void (*write32)(void *ctx, u32 addr, u32 value);
    int (*prepare)(void *ctx);
    int (*reset)(void *ctx, struct brcmf_chip *chip);
    int (*setup)(void *ctx, struct brcmf_chip *chip);
    void (*activate)(void *ctx, struct brcmf_chip *chip, u32 rstvec);
};

look at that. six whole members. she's structured, she's typed, she ate 🔥

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🎀 Members 🎀

okay so here's the rundown on every single member, no skipping, we don't do that here:

• read32 — reads a 32-bit value over the bus. that's it, that's the whole vibe. u32 (*read32)(void *ctx, u32 addr) — you give it a context and an address, it gives you back 32 bits of truth ✨
• write32 — writes a 32-bit value over the bus. the mirror twin of read32, same energy, opposite direction. void (*write32)(void *ctx, u32 addr, u32 value) — context, address, value, done, slay.
• prepare — prepares the bus for core configuration. getting her ready, doing her hair, the whole pre-game 🎀 int (*prepare)(void *ctx) — just a context, returns an int, we love a low-maintenance icon.
• setup — bus-specific core setup. this is the part where the bus does its own special little setup thing, iykyk. int (*setup)(void *ctx, struct brcmf_chip *chip) — takes the context and a struct brcmf_chip *chip.

🙈 bestie real talk: reset and activate are both right there in the struct — int (*reset)(void *ctx, struct brcmf_chip *chip) and void (*activate)(void *ctx, struct brcmf_chip *chip, u32 rstvec) — but this page doesn't actually describe what they do, and i am not out here inventing lore. i don't make things up about kernel callbacks, that's how you end up in a bug report 💀 the field names and signatures above are all we've got, okay? okay.

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h — go read the source, she's right there 📖
• struct brcmf_chip(9)
• struct brcmf_core(9)

like genuinely, go click through those, they're the friends of this page and they all hang out together 🌈

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and that's the whole page, bestie — you understood it, you slayed it, you're basically a kernel dev now 👑

this has been struct brcmf_buscore_ops(9) from the Kernel API Manual 💜 the version/source line down at the bottom said ./drivers/net/wireless/broadco... and it was dated October 2026, so yeah — go off, October 2026, we appreciate you 🎀✨