wm831x_reg_lock(9)

📦 version 7.3.1, in nixpkgs unstable

✨ wm831x_reg_lock ✨

hey bestie, welcome to the Kernel API Manual — this one's a tiny little function but she's got range, okurrr 💅

🎀 NAME 🎀

wm831x_reg_lock — Unlock user keyed registers</p>

okay so before you come for me — yes, the NAME line literally says "Unlock" while the function goes and locks things. that's not me, that's the manpage, and I am simply the messenger 🫶

🌸 SYNOPSIS 🌸

void wm831x_reg_lock (struct wm831x *wm831x );

it's giving "void, no return value, no notes, just vibes" — you call her, she does the thing, you move on ✨

🦋 ARGUMENTS 🦋

  • wm831x — pointer to local driver data structure. that's it, that's the whole guest list 💖

🔥 DESCRIPTION 🔥

So the WM831x has a user key that stops writes to particularly critical registers — think of it like the velvet rope at the club, but for your chip's most important registers 👑

This function locks those registers, allowing writes to them. yes, that's the actual behaviour as documented, and yes, it sounds backwards until you remember the whole key situation. no cap, read it twice if you need to 😭

🌈 SEE ALSO 🌈

Kernel file ./drivers/mfd/wm831x-core.c — go read the source, it ate 💅

the whole friend group, honestly. they all live in the same file and they're all iconic in their own way 🧚

and that's the page!! short and sweet, a true main character moment ✨ this cutie lives in ./drivers/mfd, dated October 2026, and if you ever need to find her again just search wm831x_reg_lock(9) 💜 bye bestie, go lock some registers (or unlock them, iykyk) 🎀

📦 where this page comes from