_find_opp_table(9)

📦 version 7.3.1, in nixpkgs unstable

💅 _find_opp_table(9) — like, the Kernel API Manual era 🎀

okay so bestie, welcome to _find_opp_table(9), straight out of the Kernel API Manual and honestly? it's a whole vibe. this one's a tiny little lookup function but it's got main character energy in the OPP world, fr fr. let's get into it ✨

🌸 NAME 🌸

_find_opp_table — find the opp_table struct using a device pointer 🫶

✨ SYNOPSIS ✨

struct opp_table * _find_opp_table (struct device *dev );

like yes, that's it, that's the whole signature 💅 one arg, one return, no drama.

🦋 ARGUMENTS 🦋

  • dev — the device pointer you're using to look up the OPP table. that's your little search key, bestie 🔑

💖 DESCRIPTION 💖

so what it does: it searches the OPP table for the one that contains a matching device. like a little scavenger hunt but for OPP tables and the prize is the one that matches your dev 🌈

⚠️ okay this part is IMPORTANT, no cap: the callers must call dev_pm_opp_put_opp_table after the table is used. don't just grab the table and ghost it 😭 that's not the move.

👑 RETURN 👑

pointer to 'struct opp_table' if found — slay, you got it 💅

otherwise you get -ENODEV or -EINVAL, depending on the type of error. so like, read the error code, it's telling you which kind of no you got 🙈

🧚 SEE ALSO 🧚

Kernel file ./drivers/opp/core.c, plus this whole friend group of OPP functions (we love a supportive cast 🫶):

and that's the whole page, bestie, we ate and left no crumbs 🍓

mwah 💋 — this little page lives in ./drivers/opp, dated October 2026, and it said _find_opp_table(9) at the top and the bottom, iconic bookends honestly ✨

📦 where this page comes from