uart_handle_cts_change(9)

💖 NAME 💖

uart_handle_cts_change — handle a change of clear-to-send state, periodt. 💅

okay so welcome to the Kernel API Manual, bestie — this is the page for uart_handle_cts_change(9), and it's giving tiny-but-important. 🎀

✨ SYNOPSIS ✨

void uart_handle_cts_change (struct uart_port *uport , bool active );

🎀 ARGUMENTS 🎀

• uport — the uart_port structure for the open port. 👑
• active — the new clear-to-send status. 🦋

💅 DESCRIPTION 💅

okay so the whole DESCRIPTION is literally: Caller must hold uport->lock. fr fr, that's the rule — no cap. 🔒

🌈 SEE ALSO 🌈

the Kernel file ./drivers/tty/serial/serial_core.c is in the mix too, and the whole squad is:

• uart_write_wakeup(9)
• uart_update_timeout(9)
• uart_get_baud_rate(9)
• uart_get_divisor(9)
• uart_get_lsr_info(9)
• uart_console_write(9)
• uart_parse_earlycon(9)
• uart_parse_options(9)
• uart_set_options(9)
• uart_change_pm(9)
• uart_register_driver(9)
• uart_unregister_driver(9)
• serial_core_add_one_port(9)
• serial_core_remove_one_port(9)
• uart_match_port(9)
• uart_handle_dcd_change(9)
• uart_insert_char(9)
• uart_try_toggle_sysrq(9)
• uart_get_rs485_mode(9)

🫶 that's the tea: source/version ./drivers/tty/serial, date October 2026, page uart_handle_cts_change(9). bye bestie 💖