STRUCT MIPI_DBI(9)

💅 struct mipi_dbi(9) — MIPI DBI interface

okay bestie, welcome to the Kernel API Manual ✨ this one's literally about struct mipi_dbi, the MIPI DBI interface, and it's lowkey just a struct with a bunch of fields so like… buckle up, it's a short one 🎀

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🌸 NAME 🌸

struct mipi_dbi — the MIPI DBI interface, periodt 💖

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🦋 SYNOPSIS 🦋

here's the whole struct, character for character, don't touch anything:

struct mipi_dbi {
    struct mutex cmdlock;
    int (*command)(struct mipi_dbi *dbi, u8 *cmd, u8 *param, size_t
num);
    const u8 *read_commands;
    bool swap_bytes;
    struct gpio_desc *reset;
    struct spi_device *spi;
    unsigned int write_memory_bpw;
    struct gpio_desc *dc;
    void *tx_buf9;
    size_t tx_buf9_len;
 };

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👑 Members 👑

okay so these are the fields, one by one, no skipping, we're doing all ten 🫶

• cmdlock — the command lock. that's it, that's the whole vibe, it locks the commands 🔒
• command — the bus-specific callback that actually executes commands. main character energy fr 💫
• read_commands — an array of read commands, terminated by a zero entry. and listen — reading is disabled if this is NULL, so don't come crying to me when it doesn't read 🙈
• swap_bytes — swaps bytes in the buffer before transfer. little endian besties stay winning 💅
• reset — optional reset gpio. optional! it can ghost you and that's fine ✨
• spi — the SPI device 🌀
• write_memory_bpw — bits per word used on a MIPI_DCS_WRITE_MEMORY_START transfer. big words, literally 🧚
• dc — optional D/C gpio. again with the optional, we love a low-commitment field 🎀
• tx_buf9 — buffer used for Option 1 9-bit conversion. nine-bit girlies rise 🔥
• tx_buf9_len — the size of tx_buf9. obviously. keeping it consistent 💀

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⭐ SEE ALSO ⭐

• Kernel file ./include/drm/drm_mipi_dbi.h — the header bestie herself
• struct mipi_dbi_dev(9)
• mipi_dbi_command(9)

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ngl this one was short but she ate 💖 go read the header if you want the full lore, iykyk 🌈

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and that's a wrap, bestie 🍓 from ./include/drm, dated October 2026, on the struct mipi_dbi(9) page — mwah, stan, bye 💜🦋