tty_hangup(9)

👑 tty_hangup — Kernel API Manual, bestie edition ✨

okay so we're doing kernel API manual pages now and honestly? this one is short and iconic. it lives in the Kernel API Manual, section 9, and it's giving "one tiny function, absolutely massive consequences" 💅

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🌸 NAME 🌸

tty_hangup — trigger a hangup event, no cap 🔥

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✨ SYNOPSIS ✨

void tty_hangup (struct tty_struct *tty );

literally that's it. one argument, returns nothing, does a whole lot. periodt.

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🎀 ARGUMENTS 🎀

• tty — the tty you want to hang up on. yes, that tty. the one right there. 💖

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🦋 DESCRIPTION 🦋

okay so listen: a carrier loss has occurred on tty — virtual or otherwise, doesn't matter, the carrier is gone 😭. and instead of just freaking out on the spot, what we do is schedule a hangup sequence to run after this event. like, we're not doing it now, we're putting it on the calendar. main character energy: the hangup is booked, the vibe check is pending, and it'll happen right after the current thing wraps up 🫶

no, seriously — it's scheduled, not immediate. that's the whole personality of this function, bestie. iykyk 🌈

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⭐ SEE ALSO ⭐

so there's a lot of friends in this friend group, and they all live in the kernel file ./drivers/tty/tty_io.c 📁. go say hi to all of them, fr fr:

• free_tty_struct(9)
• tty_free_file(9)
• tty_name(9)
• get_tty_driver(9)
• tty_dev_name_to_number(9)
• tty_find_polling_driver(9)
• tty_wakeup(9)
• tty_release_redirect(9)
• __tty_hangup(9)
• tty_vhangup(9)
• tty_vhangup_self(9)
• tty_vhangup_session(9)
• tty_hung_up_p(9)
• stop_tty(9)
• start_tty(9)
• tty_read(9)
• tty_write(9)
• tty_send_xchar(9)
• pty_line_name(9)
• tty_line_name(9)
• tty_driver_lookup_tty(9)
• tty_init_termios(9)
• tty_standard_install(9)
• tty_driver_install_tty(9)
• tty_driver_remove_tty(9)
• tty_reopen(9)
• tty_init_dev(9)
• tty_save_termios(9)
• tty_flush_works(9)
• release_one_tty(9)
• tty_kref_put(9)
• release_tty(9)
• tty_release_checks(9)
• tty_kclose(9)
• tty_release_struct(9)
• tty_release(9)
• tty_open_current_tty(9)
• tty_lookup_driver(9)
• tty_kopen_exclusive(9)
• tty_kopen_shared(9)
• tty_open_by_driver(9)
• tty_open(9)
• tty_poll(9)
• tiocsti(9)
• tiocgwinsz(9)
• tty_do_resize(9)
• tiocswinsz(9)
• tioccons(9)
• tiocsetd(9)
• tiocgetd(9)
• send_break(9)
• tty_get_tiocm(9)
• tty_tiocmget(9)
• tty_tiocmset(9)
• tty_get_icount(9)
• alloc_tty_struct(9)
• tty_put_char(9)
• tty_register_device(9)
• tty_register_device_attr(9)
• tty_unregister_device(9)
• __tty_alloc_driver(9)
• tty_driver_kref_put(9)
• tty_register_driver(9)
• tty_unregister_driver(9)

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💜 and that's the whole page, bestie. it shipped from ./drivers/tty, dated October 2026, and it's filed under tty_hangup(9) forever and ever. go schedule a hangup. slay. 💅✨🎀