cdns_uart_tx_empty(9)

✨ cdns_uart_tx_empty(9) ✨

okay so bestie, this is a Kernel API Manual page and it's literally about checking if TX is empty. no cap, that's the whole vibe. 💖

🌸 NAME 🌸

cdns_uart_tx_empty — check whether TX is empty. that's it, that's the function, periodt. 💅

🦋 SYNOPSIS 🦋

unsigned int cdns_uart_tx_empty (struct uart_port *port );

💅 ARGUMENTS 💅

• port — handle to the uart port structure. it's giving "pass me your uart port handle" energy 🫶

🎀 RETURN 🎀

it returns TIOCSER_TEMT on success, and 0 otherwise. that's the vibe check, bestie. ✨

🔥 SEE ALSO 🔥

the kernel file is the main character here, and the whole squad is:

• Kernel file ./drivers/tty/serial/xilinx_uartps.c
• struct cdns_uart(9)
• cdns_uart_handle_rx(9)
• cdns_rts_gpio_enable(9)
• cdns_rs485_tx_setup(9)
• cdns_rs485_rx_setup(9)
• cdns_rs485_rx_callback(9)
• cdns_calc_after_tx_delay(9)
• cdns_uart_handle_tx(9)
• cdns_uart_isr(9)
• cdns_uart_calc_baud_divs(9)
• cdns_uart_set_baud_rate(9)
• cdns_uart_clk_notifier_cb(9)
• cdns_rs485_tx_callback(9)
• cdns_uart_start_tx(9)
• cdns_uart_stop_tx(9)
• cdns_uart_stop_rx(9)
• cdns_uart_break_ctl(9)
• cdns_uart_set_termios(9)
• cdns_uart_startup(9)
• cdns_uart_shutdown(9)
• cdns_uart_type(9)
• cdns_uart_verify_port(9)
• cdns_uart_request_port(9)
• cdns_uart_release_port(9)
• cdns_uart_config_port(9)
• cdns_uart_get_mctrl(9)
• cdns_uart_console_putchar(9)
• cdns_uart_console_write(9)
• cdns_uart_console_setup(9)
• cdns_uart_suspend(9)
• cdns_uart_resume(9)
• cdns_rs485_config(9)
• cdns_uart_probe(9)
• cdns_uart_remove(9)

okay bye bestie 💋 this page is from ./drivers/tty/serial, dated October 2026 — mwah! 🫶✨