v4l2_ctrl_request_complete(9)

📦 version 7.3.1, in nixpkgs unstable

💅 v4l2_ctrl_request_complete — official Kernel API Manual energy ✨

okay bestie, so we're in the Kernel API Manual and this little icon is called v4l2_ctrl_request_complete(9), and no cap it's literally the "wrap up the request, we're done here" function. periodt.

🌸 NAME 🌸

v4l2_ctrl_request_complete — Complete a control handler request object 🎀 like, finish the request object that belongs to a control handler, that's the whole job.

✨ SYNOPSIS ✨

void v4l2_ctrl_request_complete (struct media_request *req , struct
v4l2_ctrl_handler *parent );

it returns void, so don't be out here waiting for a return value, she gives you nothing back 💅

🦋 ARGUMENTS 🦋

  • req — The request 💌 the struct media_request * you're completing, main character of the operation.
  • parent — The parent control handler, and iykyk it's the 'priv' in media_request_object_find 👑 that's your handler, bestie.

🌈 DESCRIPTION 🌈

so here's the vibe check: this function is to be called on each control handler that may have had a request object associated with it, which is basically the control handlers of a driver that supports requests. if your driver does requests, this is your moment 🫶

the way it works is honestly iconic:

  1. first, the function obtains the values of any volatile controls in the control handler and attaches them to the request 🔥 get those values, pin them to the request, slay.
  2. then, the function completes the request object 🎀 done, finished, closed out, no notes.
lowkey important: it's each control handler that may have had a request object associated with it — not one, not some, each 🙈 don't skip any of them or it's giving incomplete.

💜 SEE ALSO 💜

okay this list is long but every single one of these ate, so here we go 💅

and that's the whole page bestie, go forth and complete those requests 💖

mwah 💋 this page lives in ./include/media, and it's stamped October 2026 — see you then, girlypop 🎀✨

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