drm_mipi_dbi_dev_init(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_mipi_dbi_dev_init(9) 💅

okay so this is a page from the Kernel API Manual and honestly? it's a little baddie. it's all about waking up a MIPI DBI device so it can serve looks on your display. let's get into it bestie 🎀

✨ NAME ✨

drm_mipi_dbi_dev_init — MIPI DBI device initialization, aka the glow-up moment for your display device 🌸

🦋 SYNOPSIS 🦋

int drm_mipi_dbi_dev_init (struct mipi_dbi_dev *dbidev , const struct
       drm_display_mode *mode , u32 format , unsigned int rotation , size_t
       tx_buf_size );

like, yes, that's a lot of arguments. she's high-maintenance but she's worth it 💅

👑 ARGUMENTS 👑

  • dbidev — the MIPI DBI device structure you're initializing. this is the main character, we're basically giving her a whole new era ✨
  • mode — the hardware display mode. the lewk, the vibe, the resolution situation.
  • format — the hardware color format (DRM_FORMAT_…). yes, the original literally cuts off at the period there after DRM_FORMAT_ — that's canon, don't come for me, I'm just the messenger 🙈
  • rotation — initial rotation in degrees, Counter Clock Wise. so if your screen's doing the little sideways thing, that's what this is for 🔄
  • tx_buf_size — allocate a transmit buffer of at least this size. give her room to breathe, fr fr.

💖 DESCRIPTION 💖

So this function initializes a MIPI-DBI device. That's the whole plot. 🫶

The tx_buf_size minimum size is optional, which is so chill of it. Pass in 0 and it'll allocate enough memory to transmit a single scanline of the display — like, the bare minimum, but it absolutely ate, no notes. ⭐

🌈 RETURN 🌈

  • Zero on success 💚
  • Negative error code on failure 😭

that's it. that's the whole vibe check. lowkey iconic.

🔥 SEE ALSO 🔥

okay buckle up, this list is LONG and she's giving "linked list of besties" energy:

go read them all. or don't. I'm not your mom 💜

ngl if you're here you're probably already deep in the DRM mines. stay hydrated and read your helper functions, bestie. 💖

🏁 and that's a wrap! this page lives under ./drivers/gpu/drm (the mothership, the headquarters, the whole scene), dated October 2026, and the title of the whole thing is drm_mipi_dbi_dev_init(9). slay, bye 🩷✨

📦 where this page comes from