clk_set_duty_cycle(9)

📦 version 7.3.1, in nixpkgs unstable

hiii bestie 💖 this is the clk_set_duty_cycle(9) page from the Kernel API Manual — yes, we are deep in kernel clock land, and honestly it's giving main-character energy. Let's go 🦋

🌸 NAME 🌸

clk_set_duty_cycle — adjust the duty cycle ratio of a clock signal 💅

✨ SYNOPSIS ✨

bestie, the signature is literally this, no edits:

int clk_set_duty_cycle (struct clk *clk , unsigned int num , unsigned
       int den );

🎀 ARGUMENTS 🎀

  • clk — clock signal source. This is the clock you're adjusting, the icon of the operation 👑
  • num — numerator of the duty cycle ratio to be applied.
  • den — denominator of the duty cycle ratio to be applied.

💖 DESCRIPTION 💖

Adjust the duty cycle of a clock signal by the specified ratio. Returns 0 on success, -EERROR otherwise.

That's it — that's the whole thing. You're adjusting a duty cycle ratio; success hands you a big fat 0, and anything else is -EERROR. No cap, -EERROR is exactly what the page says, so don't come for me 💀✨

🦋 SEE ALSO 🦋

okay so the cross-reference section is huge — it's giving entire clock API group chat. The whole squad is here:

okay bye bestie 💅 source/version: ./include/linux; date: October 2026; page: clk_set_duty_cycle(9) 🫶✨

📦 where this page comes from