tty_port_close(9)

📦 version 7.3.1, in nixpkgs unstable

💅 tty_port_close(9) — Kernel API Manual

okay so bestie, welcome to tty_port_close(9), straight out of the Kernel API Manual ✨ this is the little generic helper that handles the closing side of your tty driver, and honestly it's giving "I'll clean up so you don't have to" main character energy 🎀

✨ NAME ✨

tty_port_close — the generic tty->ops->close handler 🫶

🌸 SYNOPSIS 🌸

void tty_port_close (struct tty_port *port , struct tty_struct *tty ,
struct file *filp );

🦋 ARGUMENTS 🦋

  • port — the tty_port of the device, your port bestie 💖
  • tty — the tty that's being closed, say bye-bye 👋
  • filp — the file pointer that got passed on through

👑 DESCRIPTION 👑

so this is the generic helper you drop into your driver's tty->ops->close, no cap 💅 it wraps up a whole little sequence for you: tty_port_close_start, tty_port_shutdown, and tty_port_close_end. so slay.

but here's the important part — those last two, tty_port_shutdown and tty_port_close_end, only get called if this is the last close 🔥 like, if there are still other users hanging around, they just don't fire. so if you're curious about the deets, go read the respective functions, iykyk 📖

Locking: the caller holds the tty lock 🔒 — do not come in here without it, fr fr.

🌈 SEE ALSO 🌈

Kernel file ./drivers/tty/tty_port.c and honestly the whole tty_port friend group 👑

and that's the whole page, bestie 🧚💜 this little icon came from ./drivers/tty and the version fairy stamped it October 2026 — mwah, periodt 🍓✨

📦 where this page comes from