__igc_open(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 __igc_open — Kernel API Manual energy, bestie edition 💅

okay so first things first: this little cutie lives in the Kernel API Manual, section 9, and her whole name is __igc_open(9). she's the one who picks up the phone when a network interface gets woken up. no cap, she's kind of a big deal 🎀

✨ NAME ✨

__igc_open — literally the function that gets called when a network interface is made active. she's the "you're up, queen" of the whole driver 👑

🦋 SYNOPSIS 🦋

int __igc_open (struct net_device *netdev , bool resuming );

like, copy that exactly, bestie, don't get creative with the spacing 💖

🎀 ARGUMENTS 🎀

  • netdev — the network interface device structure. the main character of the whole operation, fr fr 👑
  • resuming — a boolean that tells you whether the device is resuming or not. that's it, that's the whole vibe 😌

💜 DESCRIPTION 💜

Returns 0 on success, and a negative value on failure. that's the whole mood — zero is slay, negative is not slay 😭

the open entry point gets called when a network interface is made active by the system (IFF_UP). highkey a lot happens at this exact moment, so bestie, buckle up:

  • all the resources needed for transmit and receive operations get allocated ✨
  • the interrupt handler gets registered with the OS 🧚
  • the watchdog timer gets started ⭐
  • and the stack gets notified that the interface is ready 🫶
like, that's four whole things happening in one function call, and she does it all without breaking a sweat. iconic behavior tbh 💅

🌈 SEE ALSO 🌈

she doesn't exist in a vacuum, okay? there's a whole friend group. the kernel file she lives in is ./drivers/net/ethernet/intel/igc/igc_main.c — that's her address, don't be weird about it 🏡

and now, the full squad, iykyk — every single one of them, no gatekeeping:

like, that's the whole group chat and every single one of them is invited to the function 💀🫶

and that's the page, bestie 🧚✨

cute little sign-off for the credits: this one comes from the source/version ./drivers/net/ethernet/intel/igc, dated October 2026, and the manual page is __igc_open(9). periodt 💅💖

📦 where this page comes from