cvs_runtime_resume(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cvs_runtime_resume(9) — like, the Kernel API Manual bestie ✨

okay so we're deep in the kernel API manual today and the star of the show is cvs_runtime_resume(9) 🎀 she's a lil function with main character energy and honestly? she ate.

🌸 NAME 🌸

cvs_runtime_resume — Runtime PM resume: claim CSI-2 link ownership 👑

literally what it says on the tin: runtime power management wakes up, and CVS steps in to take ownership of the CSI-2 link. no cap.

✨ SYNOPSIS ✨

int cvs_runtime_resume (struct device *dev );

🫶 ARGUMENTS 🫶

  • dev — Device 💖 (yes bestie, that's the whole argument, she's lowkey simple like that)

🌈 DESCRIPTION 🌈

okay so here's the vibe: this gets triggered automatically when the IPU (that's the consumer, keep up 💅) runtime-resumes. why? because a DL_FLAG_PM_RUNTIME device link makes CVS the supplier — so when the consumer wakes up, the supplier gets pulled in too. it's giving "you can't sit with us unless she's here" energy fr fr.

what she actually does: transfers CSI-2 link ownership to the host 🦋 so the IPU can start receiving sensor frames. that's it, that's the whole plot. iconic.

⭐ RETURN ⭐

0 on success, or a negative errno 😭 (so like, check it, bestie, don't just vibe past the return value).

👑 SEE ALSO 👑

kernel file ./drivers/media/i2c/cvs/core.c and honestly the whole friend group 💜:

🍓 reminder: dev is a real device pointer, not a vibe. pass something valid or the kernel will simply not be your friend.

and that's the page!! 🧚 source drop is at ./drivers/media/i2c/cvs, dated October 2026 — mwah, ty for reading, go read the rest of the CVS girlies now 💖✨💅

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