v4l2_m2m_create_bufs(9)

📦 version 7.3.1, in nixpkgs unstable

✨ v4l2_m2m_create_bufs — from the Kernel API Manual, bestie ✨

okay so picture this: you're deep in the kernel source, ./include/media/v4l2-mem2mem.h is open in another tab, and you need to spin up a buffer. this is THE function for that. 💅

🎀 NAME 🎀

v4l2_m2m_create_bufs — creates a source or destination buffer, depending on the type. that's it, that's the whole vibe. the type is the main character here and decides which side gets the new buffer. ✨

🌸 SYNOPSIS 🌸

int v4l2_m2m_create_bufs (struct file *file , struct v4l2_m2m_ctx
*m2m_ctx , struct v4l2_create_buffers *create );

three args in, one int out. lowkey iconic signature ngl 🫶

💖 ARGUMENTS 💖

  • file — pointer to a struct file. yes, that file. the one you already have. 🙈
  • m2m_ctx — the m2m context assigned to the instance, given to you by a struct v4l2_m2m_ctx. this is the whole memory-to-memory situation, the group chat the buffers are joining. 💬
  • create — pointer to a struct v4l2_create_buffers. this holds the actual buffer-creation details, so like… don't pass garbage here. 🍓

🦋 SEE ALSO 🦋

the whole extended friend group, fr fr. grab a snack, this is a long one:

like I said. extended friend group. every single one of them is invited to the function-reference party 🧚✨

ngl this one's a short page — no OPTIONS, no RETURN VALUE section, no warnings, no bugs to report. what you see is what you get, and what you get is a buffer. slay. 💅

and that's the whole page, bestie — brought to you by ./include/media, dated October 2026, sitting pretty under the v4l2_m2m_create_bufs(9) banner. go create some buffers. no cap, you're gonna eat. 👑🌈💜

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