device_crea...oftware_node(9)

📦 version 7.3.1, in nixpkgs unstable

💅 device_create_managed_software_node(9) — Kernel API Manual, bestie edition ✨

okay so welcome to the device_crea...oftware_node(9) page from the Kernel API Manual 🎀 — yes the title is truncated, no that's not a typo, that's just how she's listed, periodt. sit down, grab a strawberry 🍓, we're learning about managed software nodes.

✨ NAME ✨

device_create_managed_software_node — create a software node for a device 🦋

🌸 SYNOPSIS 🌸

int device_create_managed_software_node (struct device *dev , const
struct property_entry *properties , const struct software_node *parent
);

💖 ARGUMENTS 💖

  • dev — the device the software node is assigned to. that's her home 🏠
  • properties — device properties for the software node. the whole vibe of the node, basically ✨
  • parent — parent of the software node. who she belongs to 💜

🔥 DESCRIPTION 🔥

so this function creates a software node as a managed resource for dev. what does managed mean? it means the lifetime of the newly created software node is literally tied to the lifetime of dev — they're attached, no cap 😭 when dev goes, the node goes. it's giving main character codependency.

because of that whole lifetime-tied situation, software nodes created with this function should not be reused or shared. not with your friends, not with other nodes, not at all 🙈 one node, one device, that's the rule.

also cute: the function takes a deep copy of properties for the software node. so your original properties are safe, she made her own copy 💅

and since the new software node is assigned directly to dev, and since it should not be shared, it is not returned to the caller. you don't get a little handle back, sorry bestie 🫶 the function returns 0 on success, and errno in case of an error. yes, errno, that's the error convention, that's how it works, periodt.

👑 SEE ALSO 👑

Kernel file ./drivers/base/swnode.c plus all her friends in the swnode cinematic universe:

and that's the whole page, bestie 💫

sign-off time 🎀: this lil gem comes from ./drivers/base, dated October 2026, filed under device_crea...oftware_node(9) in the Kernel API Manual. go build something iconic 🌈⭐💜

📦 where this page comes from