ENUM SPI_MEM_DATA_DIR(9)

💅 enum spi_mem_data_dir(9)

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a little baby page in ./include/linux/spi, and it's genuinely so cute once you get it. It's all about the enum that describes the direction of a SPI memory data transfer from the controller perspective. That's it. That's the whole vibe. But like, it matters, iykyk 🦋

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✨ NAME ✨

enum spi_mem_data_dir — describes the direction of a SPI memory data transfer from the controller perspective 🎀

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🌸 SYNOPSIS 🌸

enum spi_mem_data_dir {
    SPI_MEM_NO_DATA ,
    SPI_MEM_DATA_IN ,
    SPI_MEM_DATA_OUT

};

like, three constants, no extras, no notes. she's compact and she knows it 💅

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🧚 Constants 🧚

okay so here's the whole cast of characters, no cap:

• SPI_MEM_NO_DATA — literally no data transferred. nothing. zero. the void. the empty group chat 🫶
• SPI_MEM_DATA_IN — data coming from the SPI memory. it's arriving, bestie, it's inbound 📥
• SPI_MEM_DATA_OUT — data sent to the SPI memory. it's leaving, waving goodbye 📤

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🔥 SEE ALSO 🔥

go read these next, they're all in the Kernel file ./include/linux/spi/spi-mem.h and they're iconic in their own right 👑

• 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)
• struct spi_mem_driver(9)

ngl, that's a lot of SEE ALSOs for one teeny enum, but she's connected, she knows people 💀

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okay that's the page bestie, you ate that 🍓 mwah 💖

— signed off from ./include/linux/spi, dated October 2026, from your fave enum spi_mem_data_dir(9) 🌈⭐