__tty_check_change(9)

🎀 __tty_check_change(9) 🎀

okay so bestie, this page is from the Kernel API Manual and it’s literally about checking for POSIX terminal changes — it’s giving very specific kernel business 💅✨

✨ NAME ✨

• __tty_check_change — check for POSIX terminal changes

🌸 SYNOPSIS 🌸

int __tty_check_change (struct tty_struct *tty , int sig );

🦋 ARGUMENTS 🦋

• tty — the tty to check 👀
• sig — the signal to send 📨

💜 DESCRIPTION 💜

okay so here’s the situation: if we try to write to a terminal, or set the state of a terminal, and we’re not in the foreground, send SIGTTOU. that’s the move 🚨

and if that signal is blocked or ignored? then go ahead and perform the operation anyway, bestie. slay. (POSIX 7.2) 📚✨

🔒 Locking: ctrl.lock

🌈 SEE ALSO 🌈

• Kernel file ./drivers/tty/tty_jobctrl.c
• __proc_set_tty(9)
• tty_signal_session_leader(9)
• disassociate_ctty(9)
• tiocsctty(9)
• tty_get_pgrp(9)
• tiocgpgrp(9)
• tiocspgrp(9)
• tiocgsid(9)

that’s the whole page, bestie 🫶 — brought to you from ./drivers/tty, dated October 2026, for __tty_check_change(9). periodt 💅🎀