dpm_suspend_start(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dpm_suspend_start(9) ✨

okay so this is a page from the Kernel API Manual (yes, the kernel has a whole manual and it's lowkey iconic 💅) and we're about to get into how the kernel puts your devices to sleep before a power-management glow-up. stay with me bestie, it's actually not that deep 🫶

🌸 NAME 🌸

dpm_suspend_start — literally the "get the devices ready for the PM transition, then suspend them" function. prepare + suspend, one iconique little package ✨

🦋 SYNOPSIS 🦋

int dpm_suspend_start (pm_message_t state );

🎀 ARGUMENTS 🎀

  • state — the PM transition of the system that's being carried out. that's the vibe check for which kind of sleep we're doing 💤

💖 DESCRIPTION 💖

so what it does is: it prepares all non-sysdev devices for the system PM transition, and then it executes the "suspend" callbacks for them. that's it. that's the whole slay. no cap 💅

bestie note: "non-sysdev" means the sysdev devices are not in this batch — they're on their own little journey 🙈

🔥 SEE ALSO 🔥

this is the friend group, and yes it's a big one — every single one of these is linked and every single one matters 🫶

the kernel file we're living in is ./drivers/base/power/main.c, and the rest of the squad is:

go read them. all of them. i'll wait 🍓

and that's the page!! 💜

this little masterpiece lives in ./drivers/base/power, dated October 2026 — so like, future girlboss energy fr fr 👑 mwah, go suspend some devices responsibly ✨🎀

📦 where this page comes from