v4l2_device_mask_has_op(9)

📦 version 7.3.1, in nixpkgs unstable

💅 v4l2_device_mask_has_op(9)

okay so bestie, buckle up — this one's from the Kernel API Manual and it's literally the glow-up check for your sub-devices. It's v4l2_device_mask_has_op, and no cap, it's giving "quick lil boolean sniff test." ✨

✨ NAME ✨

v4l2_device_mask_has_op — checks if any subdev with matching group mask has a given ops.

like, the whole vibe: you've got a bunch of subdevs, you filter by group mask, and you just wanna know does any of them have this op tho? 👑

🎀 SYNOPSIS 🎀

v4l2_device_mask_has_op (v4l2_dev , grpmsk , o , f );

🦋 ARGUMENTS 🦋

  • v4l2_dev — the struct v4l2_device that owns the sub-devices you're boutta iterate over. it's the main character here, fr fr.
  • grpmsk — the bitmask that gets checked against struct v4l2_subdev->grp_id, aka the group ID to be matched. and here's the cute part: use 0 to match them all. everyone's invited to the party 💖
  • o — the name of the element at struct v4l2_subdev_ops that contains f. each element in there groups up a set of operation functions, like lil cliques ngl.
  • f — the operation function that will be called if cond matches. the operation functions are defined in groups, according to each element at struct v4l2_subdev_ops. iykyk 🧚

🌈 SEE ALSO 🌈

the whole friend group, assembled 🫶 :

bestie pls note 📌 — every one of those names is a real page, so don't come for me if you typo one, that's on you 💀

that's the whole page, periodt. sourced from ./include/media, dated October 2026 — go off, kernel edition 🌸💜

📦 where this page comes from