pwrdm_read_prev_logic_pwrst(9)

📦 version 7.3.1, in nixpkgs unstable

💖 pwrdm_read_prev_logic_pwrst 💖

okay so this is a page from the Kernel API Manual (yes, the kernel has lore fr) and it's about peeking at a powerdomain's previous logic power state. tiny function, big "what did you just do" energy.

✨ NAME ✨

pwrdm_read_prev_logic_pwrst — get previous powerdomain logic power state

like, literally just: what logic power state was this powerdomain in before? that's the whole vibe check 🫶

🌸 SYNOPSIS 🌸

int pwrdm_read_prev_logic_pwrst (struct powerdomain *pwrdm );

one function, one argument, returns an int. minimal. iconic. 💅

🦋 DESCRIPTION 🦋

so here's the tea bestie: this returns the powerdomain pwrdm's previous logic power state. that's it, that's the whole function.

and the failure mode is very demure, very mindful:

  • if the powerdomain pointer is null, you get -EINVAL back 😭
  • if it's all good, you get the previous logic power state upon success ✨
ngl, passing a null pwrdm here is not the moment — -EINVAL is the polite way of saying "bestie, no."

🎀 ARGUMENTS 🎀

  • pwrdm — a struct powerdomain * pointing at the powerdomain you wanna get the previous logic power state for. that's the one (and only) thing you hand over 💖

👑 SEE ALSO 👑

the whole squad lives in the kernel file ./arch/arm/mach-omap2/powerdomain.c and here they all are, no cap, every single one:

no gatekeeping here, we link everything 🫶✨

and that's the page!! this one shipped out of ./arch/arm/mach-omap2 back in October 2026, and the manual is gonna keep telling everyone it's pwrdm_read_prev_logic_pwrst(9) forever. slay 💜🎀

📦 where this page comes from