clk_rate_exclusive_get(9)

📦 version 7.3.1, in nixpkgs unstable

Hiii bestie 💖 welcome to the Kernel API Manual page for clk_rate_exclusive_get(9) — yes, the whole manual, and yes we're getting into it.

🌸 NAME 🌸

clk_rate_exclusive_get — get exclusivity over the rate control of a producer 👑

✨ SYNOPSIS ✨

int clk_rate_exclusive_get (struct clk *clk );

🎀 ARGUMENTS 🎀

  • clk — clock source 🕰️

💅 DESCRIPTION 💅

Okay so picture this: a driver wants to be the only one calling the shots on a clock provider's rate. That's literally what this function is for ✨. It lets drivers get exclusive control over the rate of a provider, and it stops any other consumer from executing — even indirectly — an operation that could alter the provider's rate or cause glitches. No cap.

If exclusivity is claimed more than once on a clock, even by the same driver, the rate effectively gets locked, because exclusivity can't be preempted. So like… double-claim and it's locked-locked. Periodt. 💅

Warning, bestie: clk_rate_exclusive_get must not be called from within atomic context. That's a hard no. 🚫😭

Returns success (0) or a negative errno.

🦋 SEE ALSO 🦋

Kernel file ./include/linux/clk.h — and the whole clock-adjacent friend group 💖:

Mwah 💋 — this page came from the Kernel API Manual, lives at ./include/linux, and is dated October 2026. The page's own name is clk_rate_exclusive_get(9), and yes she ate. 🎀✨

📦 where this page comes from