v4l2_m2m_num_src_bufs_ready(9)

📦 version 7.3.1, in nixpkgs unstable

💅 v4l2_m2m_num_src_bufs_ready — from the Kernel API Manual ✨

okay so bestie, we're in the Kernel API Manual today and the main character is v4l2_m2m_num_src_bufs_ready(9). no cap, it's a little one, but it's doing important work. let's get into it 🫶

🌸 NAME 🌸

v4l2_m2m_num_src_bufs_ready — literally returns the number of source buffers that are ready for use 💖 that's it, that's the whole vibe.

⭐ SYNOPSIS ⭐

unsigned int v4l2_m2m_num_src_bufs_ready (struct v4l2_m2m_ctx *m2m_ctx );

it's giving "tiny signature, big responsibilities" tbh 👑

🎀 ARGUMENTS 🎀

  • m2m_ctx — the m2m context assigned to the instance, given to you by struct v4l2_m2m_ctx ✨ that's the one and only thing you hand over, and honestly she carries the whole call on her back.

🦋 SEE ALSO 🦋

okay so this is the friend group 😭 and it's a big friend group. the kernel file is ./include/media/v4l2-mem2mem.h, and everything below lives in the same orbit — no gatekeeping, all listed:

bestie if you only click one of these, v4l2_m2m_num_dst_bufs_ready(9) is her literal sibling — same energy, destination flavour 💅

that's the whole page, and yes it was short, but we ate and left no crumbs 🌈

sign-off time 🎀 this one's filed under ./include/media (source/version, xoxo) and dated October 2026 — so she's fresh, she's current, she's thriving 💜 bye bestie, go count those source buffers ✨

📦 where this page comes from