v4l2_m2m_reqbufs(9)

📦 version 7.3.1, in nixpkgs unstable

💖 v4l2_m2m_reqbufs 💖

okay so this is a page from the Kernel API Manual and it's lowkey about one very specific little function that punches way above its weight 🫶

✨ NAME ✨

v4l2_m2m_reqbufs — the multi-queue-aware REQBUFS multiplexer, bestie. that's the whole vibe. it's the reqbufs of reqbufs 😭

🌸 SYNOPSIS 🌸

int v4l2_m2m_reqbufs (struct file *file , struct v4l2_m2m_ctx *m2m_ctx ,
struct v4l2_requestbuffers *reqbufs );

like, it takes three things and gives you back an int. that's it. that's the whole main character moment 💅

🎀 ARGUMENTS 🎀

  • file — pointer to struct file. yes bestie, the file. the actual file struct. iconic.
  • m2m_ctx — the m2m context assigned to the instance, given to you by struct v4l2_m2m_ctx. this is the context. the situational context. the whole mood of the operation 🦋
  • reqbufs — pointer to struct v4l2_requestbuffers. the buffer request details live here and you're handing it over, no cap.
ngl these are literally just three pointers, so get your pointer game right before you call this. no vibes-based memory management here fr fr 🙈

🔥 SEE ALSO 🔥

the full squad, the entire group chat, everybody who ever shows up in this corner of the kernel — no skips, no "you can read the rest later", we're listing all 59 of them because every single one is invited to the party 🎉💜

the way that list just keeps going 😭 every single one of them is a real page, go read them, iykyk 🧚

and that's the whole thing bestie!! go forth and multiplex those buffers responsibly 💖✨ this came out of ./include/media in October 2026 — periodt, that's the sign-off, love u, bye 🎀🦋🌸

📦 where this page comes from