register_netdev(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

register_netdev — register a network device. Yep bestie, you're on the register_netdev(9) page from the Kernel API Manual, and it's exactly what it sounds like 🫶

🦋 SYNOPSIS 🦋

int register_netdev (struct net_device *dev );

🎀 ARGUMENTS 🎀

  • dev — the device to register. That's the whole argument, no cap 💅

✨ DESCRIPTION ✨

So the vibe is: you've got a completed network device structure, and this function takes it and adds it to the kernel interfaces. Iconic behavior, honestly 👑

A NETDEV_REGISTER message is sent to the netdev notifier chain — like a little group-chat announcement 📣

It returns 0 on success. On failure to set up the device, or if the name is a duplicate, you get a negative errno code. Not slay, but at least it's honest 😭

This is a wrapper around register_netdevice that takes the rtnl semaphore and expands the device name if you passed a format string to alloc_netdev. Yep, that's the whole wrapper moment ✨

🌈 SEE ALSO 🌈

Kernel file: ./net/core/dev.c

And here's the entire SEE ALSO squad, bestie — same order, every single (9) cutie, no skips:

Cute little sign-off time 🎀 This page comes from source/version ./net/core, dated October 2026, and it's the register_netdev(9) page. Mwah 💋 Go register something iconic.

📦 where this page comes from