dpm_for_each_dev(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dpm_for_each_dev(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a lil cutie from the device power management corner of the kernel, and honestly? it's giving "simple but iconic." let's get into it 🫶

✨ NAME ✨

dpm_for_each_dev — the device iterator. that's it, that's the vibe 🦋 it walks the list and hits you with a callback for every single device.

🌸 SYNOPSIS 🌸

void dpm_for_each_dev (void *data , void (*fn)(struct device *, void *)
);

no cap, that's the whole signature. two args, zero drama 👑

🎀 ARGUMENTS 🎀

  • data — literally just the data you wanna hand off to the callback. it gets passed straight through, no questions asked 💖
  • fn — the function that gets called for each device. your main character callback, fr fr 🌟

🦋 DESCRIPTION 🦋

so here's the tea ☕ — dpm_for_each_dev iterates over the devices in dpm_list, and for each and every device it calls fn, passing along data. that's the entire plot. no plot twists, no hidden lore, just a clean lil loop through the list 💅✨

like, it's a for-each. it does the for-each thing. and it ate. periodt 🍓

💜 SEE ALSO 💜

bestie there are SO many siblings in this family, buckle up 🌈 first the kernel file: ./drivers/base/power/main.c

go read them all, iykyk 📚💖

lowkey a reminder: this page only tells you what the function does — iterate dpm_list, call fn per device with data. don't go reading extra behaviour into it, bestie 🙈

and that's a wrap, gorgeous 🌸 this gem comes from ./drivers/base/power, dated October 2026 — go off, you absolute icon 👑💅⭐

📦 where this page comes from