v4l2_subdev_get_fmt(9)

📦 version 7.3.1, in nixpkgs unstable

💅 v4l2_subdev_get_fmt(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — this is the page for v4l2_subdev_get_fmt(9) and honestly? it's a lil baby function that does exactly one thing and does it well. no cap.

🌸 NAME 🌸

v4l2_subdev_get_fmt — Fill format based on state 🎀

✨ SYNOPSIS ✨

int v4l2_subdev_get_fmt (struct v4l2_subdev *sd , struct
v4l2_subdev_state *state , struct v4l2_subdev_format *format );

🦋 ARGUMENTS 🦋

  • sd — the subdevice, she's the main character here 👑
  • state — the subdevice state, aka the vibe check container 🫶
  • format — pointer to struct v4l2_subdev_format, the thing that's getting filled in 💖

🌈 DESCRIPTION 🌈

okay so what does she actually do? she fills in the format->format field based on the info that's already chillin' in the format struct. that's it. that's the whole gig. and she ate 💅

here's the tea though — this function is for subdev drivers that support active state. if your subdev driver doesn't need to do anything special in its get_fmt op, you can just use this bad boy to implement v4l2_subdev_pad_ops.get_fmt and call it a day. iconic, low-effort, high-reward behavior fr fr ✨

returns 0 on success, or an error value otherwise. simple as that 🍓

🔥 SEE ALSO 🔥

bestie, buckle up, because this list is long — like, "scrolling through someone's entire camera roll" long 😭 but every single one matters, iykyk:

ngl that's a lot of cross-references, but they're all right there in ./include/media if you wanna go touch grass with them 🌱

and that's the whole page, bestie! 🧚 this lil legend lives in ./include/media and the docs are dated October 2026 — go forth and fill those formats, you absolute icon 💜🎀💖

📦 where this page comes from