tty_ldisc_setup(9)

hiii bestie 💖 this is the tty_ldisc_setup(9) page from the Kernel API Manual ✨ it’s giving “short but important,” and we’re keeping every single detail, no cap.

✨ NAME ✨

tty_ldisc_setup — open line discipline 💅

🛰️ SYNOPSIS 🛰️

int tty_ldisc_setup (struct tty_struct *tty , struct tty_struct *o_tty
);

🎀 ARGUMENTS 🎀

• tty — tty being shut down 🌸
• o_tty — pair tty for pty/tty pairs 🫶

🧚 DESCRIPTION 🧚

okay so tty_ldisc_setup is called during the initial open of a tty/pty pair in order to set up the line disciplines and bind them to the tty. literally its whole main-character job 💖

and no locking drama here, bestie — this has no locking issues as the device isn't yet active. periodt ✨

🔗 SEE ALSO 🔗

Kernel file: ./drivers/tty/tty_ldisc.c 👑

• tty_register_ldisc(9)
• tty_unregister_ldisc(9)
• tty_ldisc_get(9)
• tty_ldisc_put(9)
• tty_ldisc_ref_wait(9)
• tty_ldisc_ref(9)
• tty_ldisc_deref(9)
• tty_ldisc_flush(9)
• tty_set_termios_ldisc(9)
• tty_ldisc_open(9)
• tty_ldisc_close(9)
• tty_ldisc_failto(9)
• tty_ldisc_restore(9)
• tty_set_ldisc(9)
• tty_ldisc_kill(9)
• tty_reset_termios(9)
• tty_ldisc_reinit(9)
• tty_ldisc_hangup(9)
• tty_ldisc_release(9)
• tty_ldisc_init(9)
• tty_ldisc_deinit(9)

okay byeee bestie 🫶 — source/version: ./drivers/tty, dated October 2026 💜✨