STRUCT SPI_RES(9)

✨ struct spi_res(9) ✨

okay so real talk, this is from the Kernel API Manual — like, the actual kernel docs, but make it make sense 💅

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🌸 NAME 🌸

struct spi_res — the SPI resource management structure, aka the little bookkeeper that keeps track of stuff during SPI message processing 🎀

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🦋 SYNOPSIS 🦋

struct spi_res {
    struct list_head        entry;
    spi_res_release_t release;
    unsigned long long      data[];
};

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💖 Members 💖

• entry — the list entry. classic linked-list moment, she's in the chain 🔗
• release — the release code called prior to freeing this resource. like, she cleans up before she leaves the party ✨
• data — extra data allocated for the specific use-case. it's giving flexible array member realness 👑

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🌈 Description 🌈

no cap, this whole thing is based on ideas from devres, but — and this is the main character detail — it's focused on life-cycle management during spi_message processing 🔥

so like. devres vibes, but make it SPI-message-shaped. periodt 🫶

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🧚 SEE ALSO 🧚

Kernel file ./include/linux/spi/spi.h 💜

• struct spi_statistics(9)
• struct spi_delay(9)
• struct spi_device(9)
• struct spi_driver(9)
• spi_unregister_driver(9)
• module_spi_driver(9)
• struct spi_controller(9)
• struct spi_transfer(9)
• struct spi_message(9)
• spi_message_init_with_transfers(9)
• spi_is_bpw_supported(9)
• spi_bpw_to_bytes(9)
• spi_controller_xfer_timeout(9)
• struct spi_replaced_transfers(9)
• spi_sync_transfer(9)
• spi_write(9)
• spi_read(9)
• spi_w8r8(9)
• spi_w8r16(9)
• spi_w8r16be(9)
• struct spi_board_info(9)

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bestie this whole list is the friend group and you will be clicking through all of them, iykyk 💀

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🎀 and that's the page!! sourced straight from ./include/linux/spi, dated October 2026 — go off, kernel docs, you ate 👑💖