tty_get_tiocm(9)

💅 tty_get_tiocm — get tiocm status register

okay so this is tty_get_tiocm(9), straight out of the Kernel API Manual bestie, and it's lowkey one of the shortest little baddies in the whole tty family. let's get into it 🫶

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✨ SYNOPSIS ✨

int tty_get_tiocm (struct tty_struct *tty );

like… that's it. that's the whole thing. no extra params, no silly optional flags, no drama 💅

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🎀 ARGUMENTS 🎀

• tty — the tty device. that's your main character right there, the whole reason we're here 🌸

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💖 DESCRIPTION 💖

so what does it actually do? it obtains the modem status bits from the tty driver — but only if the feature is supported. that "if" is doing a lot of work ngl, so don't come for me if your driver isn't about that life 🙈

it's giving "hey bestie, can you hand me the status bits?" and the driver either slays or says no. vibe check first, always ✨

no cap: "if the feature is supported" is the entire personality of this function, so pls don't assume your driver does it. it's conditional, fr fr.

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🦋 SEE ALSO 🦋

okay this list is LONG and honestly iconic — the entire tty cinematic universe shows up 💀 the kernel file is ./drivers/tty/tty_io.c, and here's everyone invited to the group chat:

• 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_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_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)

and if that's not enough tty for you, the whole thing lives over in ./drivers/tty — go wild 🧚

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anyway bestie, that's the page!! this one shipped in the ./drivers/tty section, dated October 2026, and it goes by tty_get_tiocm(9) — mwah, go get those modem status bits, mwah 💜🎀⭐