tty_register_ldisc(9)

👑 tty_register_ldisc(9) — aka the glow-up page for installing a line discipline 💅

okay so bestie, welcome to the Kernel API Manual ✨ this is the tty_register_ldisc(9) page and it's literally about giving a brand-new line discipline its main character debut in the kernel 🎀

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✨ NAME ✨

tty_register_ldisc — install a line discipline 🦋

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🌸 SYNOPSIS 🌸

int tty_register_ldisc (const struct tty_ldisc_ops *new_ldisc );

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💖 ARGUMENTS 💖

• new_ldisc — pointer to the ldisc object 🫶 yes, the actual object, the whole vibe, the pointer is the moment

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🔥 DESCRIPTION 🔥

So here's the tea ☕ this function installs a new line discipline into the kernel. The discipline gets set up as unreferenced first, and then — from this point onwards — it's made available to the kernel. Like, it's officially out there, living its life, and the kernel can see it 💀✨

Locking: it takes tty_ldiscs_lock to guard against ldisc races 🏃‍♀️💨 no cap, that lock is the bouncer at the door keeping everything from getting messy.

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🦋 SEE ALSO 🦋

Kernel file ./drivers/tty/tty_ldisc.c — plus the whole friend group, all of them, every single one 👑:

• 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_setup(9)
• tty_ldisc_release(9)
• tty_ldisc_init(9)
• tty_ldisc_deinit(9)

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and that's the whole page, bestie 🍓💜 shoutout to the source ./drivers/tty and the date October 2026 — that's the sign-off, mwah, go register some line disciplines responsibly 😭🎀