v4l2_ctrl_poll(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 v4l2_ctrl_poll(9) 🌸

okay so welcome to the Kernel API Manual bestie, this page is literally all about v4l2_ctrl_poll and it's short and sweet and i'm obsessed 💖

✨ NAME ✨

v4l2_ctrl_poll — the function you use as a callback to the poll() that just polls for control events. that's it. that's the whole job. no cap 🎀

🦋 SYNOPSIS 🦋

__poll_t v4l2_ctrl_poll (struct file *file , struct poll_table_struct *wait );

like look at her. two args. she's gorgeous. the way she returns an __poll_t?? iconic 😭

💅 ARGUMENTS 💅

  • file — pointer to struct file. yes, the file. the one you're polling on. she's right there 🫶
  • wait — pointer to struct poll_table_struct. the poll table. hand it over, bestie, it's part of the vibe 🌈

👑 SEE ALSO 👑

okay this is the part where the manpage goes feral and lists literally everyone in the ctrl friend group 💀 but they're all icons so we're listing them all, no skips, no shortcuts, periodt:

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

see? everyone showed up. the whole guest list. ate and left no crumbs ✨

ok that's the whole page bestie, it's a short one, go read the others if you want the lore 🧚

and that's a wrap!! this came from ./include/media and it's dated October 2026 — mwah, hope this helped, ily, go poll some control events 💜🎀💖

📦 where this page comes from