v4l2_m2m_expbuf(9)

📦 version 7.3.1, in nixpkgs unstable

💅 v4l2_m2m_expbuf(9) — Kernel API Manual

okay bestie, welcome to the v4l2_m2m_expbuf page 💖 this one lives in the Kernel API Manual, and it is, and I say this with love, short. Like, three-lines-of-prose short. But we're gonna make it iconic anyway, because every entry in this family deserves main character energy ✨

🌸 NAME 🌸

v4l2_m2m_expbuf — export a source or destination buffer, depending on the type 🎀

🦋 SYNOPSIS 🦋

int v4l2_m2m_expbuf (struct file *file , struct v4l2_m2m_ctx *m2m_ctx ,
       struct v4l2_exportbuffer *eb );

yep, that's the whole vibe. returns an int, takes three pointers, that's it 💅

✨ ARGUMENTS ✨

  • file — pointer to struct file 🗂️ the usual file-handle situation
  • m2m_ctx — the m2m context assigned to the instance, given by struct v4l2_m2m_ctx 🧚 this is the mem2mem brain of the operation
  • eb — pointer to struct v4l2_exportbuffer 🍓 the export buffer itself, right there
no defaults to memorise, no optional flags, no hidden values — three args, all of them pointers, all of them required. slay for simplicity ngl 😭

🔥 SEE ALSO 🔥

okay so the original page hands you a whole friend group here, and I am NOT about to drop a single one of them, so buckle up buttercup 🌈 first, the file to open:

Kernel file ./include/media/v4l2-mem2mem.h

then every single reference, in order, no cap 👑

like I said. the whole group chat 💀 go read them, they're all under (9), you'll be fine 🫶

🎀 and that's the page 🎀

no environment variables, no exit-status drama, no warnings hiding in here — the manpage is genuinely this chill 🌸 so consider this your certified vibe check passed ✅

mwah 💋 this one is filed under ./include/media and dated October 2026 — see you in the next one, bestie 💜

📦 where this page comes from