cdns_rs485_config(9)

💅 cdns_rs485_config(9) — the Kernel API Manual glow-up ✨

okay so bestie, welcome to the Kernel API Manual page for cdns_rs485_config — it lives in the kernel's TTY/serial corner and it's lowkey the moment your RS485 dreams become real 🫶

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🌸 NAME 🌸

cdns_rs485_config — the function that gets called when an application calls the TIOCSRS485 ioctl. that's it, that's the whole vibe 💅

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🎀 SYNOPSIS 🎀

int cdns_rs485_config (struct uart_port *port , struct ktermios *termios
, struct serial_rs485 *rs485 );

three pointers in, one int out. iconic minimalism, no cap ✨

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🦋 ARGUMENTS 🦋

one bullet per bestie, no skipping 🍓

• port — Pointer to the uart_port structure. this is the port representation, the main character of the whole serial saga 👑
• termios — Pointer to the ktermios structure. your terminal-settings situation, hand-delivered 🎀
• rs485 — Pointer to the serial_rs485 structure. the RS485-specific config, literally the whole reason we're here 🌈

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⭐ RETURN ⭐

0

that's it. that's the return value. she returns 0 and she moves on 💀✨

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👑 SEE ALSO 👑

the whole friend group, fr fr — every single one of these is linked and accounted for 💜

• 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_uart_tx_empty(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_uart_probe(9)
• cdns_uart_remove(9)

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🧚 tiny reminder: TIOCSRS485 is the ioctl that gets this whole party started — that's straight from the NAME section, iykyk 💖

and that's the page!! mwah 💋 this lil gem ships out of ./drivers/tty/serial, October 2026 edition — go read the whole cdns_uart family, they're all here 🌸🦋💅