STRUCT HYPERBUS_OPS(9)

👑 struct hyperbus_ops(9) 👑

okay so this is from the Kernel API Manual, and it's literally the page for struct hyperbus_ops — the struct that's giving custom HyperBus operations. like, it's a vtable of function pointers and it's lowkey iconic 💅

✨ NAME ✨

struct hyperbus_ops — the struct representing custom HyperBus operations 🦋

🌸 SYNOPSIS 🌸

struct hyperbus_ops {
    u16 (*read16)(struct hyperbus_device *hbdev, unsigned long addr);
    void (*write16)(struct hyperbus_device *hbdev, unsigned long addr, u16 val);
    void (*copy_from)(struct hyperbus_device *hbdev, void *to, unsigned long from, ssize_t len);
    void (*copy_to)(struct hyperbus_device *dev, unsigned long to, const void *from, ssize_t len);
    int (*calibrate)(struct hyperbus_device *dev);
 };

no cap, that's the whole shape of it — five function pointers, each one a little main character 🎀

💖 Members 💖

• read16 — reads 16 bits of data from flash in a single burst 🔥 bestie this is the one you use to read from a non default address space, like the ID/CFI space. so when the normal address space isn't it, this is it ✨
• write16 — writes 16 bits of data to flash in a single burst 🌸 used to send a cmd to flash, or to write a single 16 bit word at a time. one little word, one little burst, slay 💅
• copy_from — copies data from flash memory 📥 like, the flash is the source, you're pulling it out 🫶
• copy_to — copies data to flash memory 📤 opposite vibe, you're pushing it in 💜
• calibrate — calibrates the HyperBus controller ⭐ it's giving "vibe check but for your controller" and it returns an int 😭

🦋 SEE ALSO 🦋

• Kernel file ./include/linux/mtd/hyperbus.h 📁
• struct hyperbus_device(9)
• struct hyperbus_ctlr(9)
• hyperbus_register_device(9)
• hyperbus_unregister_device(9)

like, go read those next, iykyk 👑

okay that's the whole page, no notes 💀 and for the sign-off cute bit: this lives in the source tree at ./include/linux/mtd and it's dated October 2026 — periodt, go forth and burst-read your flash 🌈💖