_save_mpu_port_index(9)

📦 version 7.3.1, in nixpkgs unstable

✨ _save_mpu_port_index ✨

okay so this is from the Kernel API Manual, section 9, and it's giving “tiny helper with one very specific job” energy 💅. We're talking about _save_mpu_port_index.

🌸 NAME 🌸

_save_mpu_port_index — finds the index to @oh's MPU port and saves it. no cap, that's the whole name vibe 💖

🎀 SYNOPSIS 🎀

the signature is literally:

void _save_mpu_port_index (struct omap_hwmod *oh );

🦋 ARGUMENTS 🦋

  • oh — this is a struct omap_hwmod *. that's the hwmod bestie we're working with 🫶

💅 DESCRIPTION 💅

So basically this function determines the array index of the OCP slave port that the MPU uses to address the device. Then it saves that index into the struct omap_hwmod. It's lowkey a bookkeeping baddie ✨.

It's intended to be called during hwmod registration only — like, that's its whole lane, don't pull it out at random 😭. There is no return value. it's void, periodt 💀.

🌈 SEE ALSO 🌈

The kernel file is right here: ./arch/arm/mach-omap2/omap_hwmod.c 🗂️.

and the whole squad of related references, in the original order, because we do not skip the friend group 💖:

mwah 💋 — footer energy: source ./arch/arm/mach-omap2, date October 2026, and the page is _save_mpu_port_index(9). byeee 🫶

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