parse_tree_node(9)

📦 version 7.3.1, in nixpkgs unstable

💅 parse_tree_node(9) — kernel API manual, bestie edition ✨

okay so real talk, this page is parse_tree_node from the Kernel API Manual, and it's literally the little function that hands you back a device entry in the iotree. no cap. 🦋

🌸 NAME 🌸

parse_tree_node — returns a device entry in the iotree 👑

✨ SYNOPSIS ✨

struct device * parse_tree_node (struct device *parent , int index ,
struct hardware_path *modpath );

that's the whole vibe, copy it exactly, don't @ me 🎀

🫶 ARGUMENTS 🫶

  • parent — the parent node in the tree 🌳 like, the one whose children we're about to go snooping through
  • index — the current BC index 🔢 yes, current — it matters
  • modpath — the hardware_path struct we're matching a device against 🧚 the thing we're comparing each device to

💖 RETURN 💖

The corresponding device if found — and NULL otherwise. that's it. that's the whole deal 🙈

💜 DESCRIPTION 💜

so what it does is: it checks all the children of parent looking for a matching id 👀 every single one. and if none of them match? it returns NULL. slay, but make it sad 😭

like literally the whole function is "look at the kids, find the match, otherwise nothing." main character energy for a tiny helper fr fr.

tiny note bestie: it's all the children — not "some", not "until you feel like stopping". all of them. 💅

🌈 SEE ALSO 🌈

Kernel file ./arch/parisc/kernel/drivers.c — go read it, it's giving source of truth 📖

all of them. every last one. iykyk 💀✨

and that's the page, bestie 🫶 this one ships out of ./arch/parisc/kernel, dated October 2026 — parse_tree_node(9), signing off 💖🎀⭐

📦 where this page comes from