__sca3000_unlock_reg_lock(9)

📦 version 7.3.1, in nixpkgs unstable

💅 __sca3000_unlock_reg_lock — bestie, it's giving "unlock the control registers"

okay so real talk, this one lives in the Kernel API Manual and it's a lil function from the SCA3000 accelerometer driver. tiny function, big responsibilities. let's get into it 🫶

✨ SYNOPSIS ✨

int __sca3000_unlock_reg_lock (struct sca3000_state *st );

that's it. that's the whole signature. returns an int, takes one pointer. lowkey iconic of it ✨

🌸 ARGUMENTS 🌸

  • st — the driver-specific device instance data. literally the lil bundle of everything the driver knows about your specific device, like its whole personality in a struct 💖

🦋 DESCRIPTION 🦋

okay so first thing's first, and this is the tea: the device does not appear to support doing this in a single transfer. so no, you can't just yeet it all over in one go, sorry bestie 😭

second thing, and this one's important so pay attention 👑: this should only ever be used as part of ctrl reg read. that's its whole job, that's its whole moment, main character energy but only in that one scene. fr fr.

and third 🚨: the lock must be held before calling this. like, must. no exceptions. if you call it without holding the lock, that's a vibe check you are going to fail and honestly the kernel will not be nice about it 💀

bestie warning: lock held before calling. that's the rule. don't be the one who forgets 🎀

🌈 SEE ALSO 🌈

the whole fam, all referenced from the kernel file ./drivers/iio/accel/sca3000.c:

like genuinely go read the whole squad, they all hang out together 🧚

🎀 sign-off 🎀

this lil page came to you from ./drivers/iio/accel, dated October 2026, under the Kernel API Manual. mwah, go forth and unlock those registers responsibly 💜✨

📦 where this page comes from