STRUCT SPI_MEM_DRIVER(9)

✨ struct_spi_mem_driver(9) — like, the whole vibe ✨

okay bestie, buckle up — this is the manual page for struct spi_mem_driver from the Kernel API Manual. yes, the kernel. we're doing big-girl systems programming today 💅

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🌸 NAME 🌸

struct spi_mem_driver — the SPI memory driver, herself 👑

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🎀 SYNOPSIS 🎀

here's the struct in all her glory, copy it exactly, no typos, she's sensitive:

struct spi_mem_driver {
    struct spi_driver spidrv;
    int (*probe)(struct spi_mem *mem);
    int (*remove)(struct spi_mem *mem);
    void (*shutdown)(struct spi_mem *mem);
 };

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🦋 Members 🦋

• spidrv — she inherits from a SPI driver. like, that's her whole ancestry, no cap.
• probe — probes a SPI memory. this is usually where the detection/initialization happens, so it's lowkey the main character of the four 🫶
• remove — removes a SPI memory. say bye 👋
• shutdown — takes appropriate action when the system is shutdown. dramatic but necessary 💀

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🌈 Description 🌈

okay so the tea ☕: this thing is just a thin wrapper around a spi_driver. that's it. that's the whole job.

the core takes care of allocating the spi_mem object and forwarding the probe/remove/shutdown request to the spi_mem_driver. so you don't gotta do it yourself, bestie, the core's got you 💖

and here's why we even bother with this wrapper (iconic design choice honestly): we might have to stuff more information into the spi_mem struct so that SPI controllers can know more about the SPI memory they interact with. having this intermediate layer lets us do exactly that — without adding a bunch of useless fields to the spi_device object. not one single wasteful field. we're minimal like that ✨

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⭐ SEE ALSO ⭐

go read these next, iykyk:

• Kernel file ./include/linux/spi/spi-mem.h
• enum spi_mem_data_dir(9)
• struct spi_mem_op(9)
• struct spi_mem_dirmap_info(9)
• struct spi_mem_dirmap_desc(9)
• struct spi_mem(9)
• spi_mem_set_drvdata(9)
• spi_mem_get_drvdata(9)
• struct spi_controller_mem_ops(9)
• struct spi_controller_mem_caps(9)

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and that's the whole page, bestie, you ate that 🍓

💜 cute lil sign-off: this one lives at ./include/linux/spi, it's dated October 2026, and yeah — the page title is still struct spi_mem_driver(9). slay. periodt. 👑