STRUCT SPMI_CONTROLLER(9)

💅 NAME 💅

struct spmi_controller — literally the interface to the SPMI master controller, and yes bestie this is the whole ~vibe~ of the page 🎀

So welcome to the Kernel API Manual entry for this little icon — think of it as the group chat between the kernel and your SPMI master controller. It's giving "main character energy" for the whole bus ngl 👑

✨ SYNOPSIS ✨

struct spmi_controller {
    struct device           dev;
    unsigned int            nr;
    int (*cmd)(struct spmi_controller *ctrl, u8 opcode, u8 sid);
    int (*read_cmd)(struct spmi_controller *ctrl, u8 opcode, u8 sid, u16
addr, u8 *buf, size_t len);
    int (*write_cmd)(struct spmi_controller *ctrl, u8 opcode, u8 sid,
u16 addr, const u8 *buf, size_t len);
    u8 priv[];
};

Like, that's the whole struct, no cap. Every field matters, so let's go through them one by one 💖

👑 Members 👑

• dev — the driver model representation of the device 🫶 that's its whole job and it ate
• nr — the board-specific number identifier for this controller/bus. Yes it's a number, yes it's board-specific, yes it's iconic 🌈
• cmd — sends a non-data command sequence on the SPMI bus. No data, just vibes ✨
• read_cmd — sends a register read command sequence on the SPMI bus, iykyk 📖
• write_cmd — sends a register write command sequence on the SPMI bus, the pen-to-paper moment 🖊️
• priv — array of private data. It's private, mind your business 🙈 (we stan an array of private data tho)

🌸 SEE ALSO 🌸

Kernel file ./include/linux/spmi.h — go read it, bestie, it's right there:

• struct spmi_device(9)
• spmi_controller_put(9)
• struct spmi_driver(9)
• spmi_driver_unregister(9)

All four, no skips, no shortcuts 💅

ok that's the whole page!! every field, every member, every reference, all present and accounted for 🎀

later babes — this one's from ./include/linux, dated October 2026, and it's literally just struct spmi_controller(9) in all its glory ⭐🦋💜