STRUCT MIPI_DBI_DEV(9)

🎀 struct mipi_dbi_dev(9) 🎀

okay bestie, welcome to the Kernel API Manual ✨ — today's main character is struct mipi_dbi_dev, aka the MIPI DBI device struct itself. yes it's a struct, yes it's iconic, let's get into it 💅

✨ NAME ✨

struct mipi_dbi_dev — the MIPI DBI device 💖

✨ SYNOPSIS ✨

struct mipi_dbi_dev {
    struct drm_device drm;
    struct drm_display_mode mode;
    u32 pixel_format;
    u16 *tx_buf;
    unsigned int rotation;
    unsigned int left_offset;
    unsigned int top_offset;
    struct backlight_device *backlight;
    struct regulator *regulator;
    struct regulator *io_regulator;
    struct mipi_dbi dbi;
    void *driver_private;
 };

🌸 Members 🌸

like, every single field, no skips, we're doing all of them 🫶

• drm — the DRM device 👑
• mode — the fixed display mode. it's giving "locked in" ✨
• pixel_format — the native pixel format (DRM_FORMAT_) 🎨
• tx_buf — the buffer used for transfer (it copies the clip rect area, fyi) 📦
• rotation — the initial rotation, in degrees, Counter Clock Wise 🔄
• left_offset — the horizontal offset of the display relative to the controller's driver array ↔️
• top_offset — the vertical offset of the display relative to the controller's driver array ↕️
• backlight — the backlight device (optional) 💡
• regulator — the power regulator (Vdd) (optional) ⚡
• io_regulator — the I/O power regulator (Vddi) (optional) 🔌
• dbi — the MIPI DBI interface 🦋
• driver_private — driver private data. and ngl, this one's necessary for drivers with private data, because devm_drm_dev_alloc literally can't allocate structures that embed a structure which then again embeds drm_device 😭 like the nesting is real, iykyk

💜 SEE ALSO 💜

• the kernel file ./include/drm/drm_mipi_dbi.h
• struct mipi_dbi(9)
• mipi_dbi_command(9)

go read those next bestie, slay 🧚

and that's the whole page fr fr 💀 — brought to you by ./include/drm, dated October 2026, from the Kernel API Manual, all about struct mipi_dbi_dev(9). ate and left no crumbs 🌈⭐💅