cdns_uart_handle_rx(9)

💖 cdns_uart_handle_rx(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ this one's about cdns_uart_handle_rx, and it's literally the moment your UART goes "omg i got mail" 🎀

---

🌸 NAME 🌸

cdns_uart_handle_rx — the glow-up moment where the received bytes get handled, along with the Rx errors 💅 (yes, both. the good and the messy.)

---

🦋 SYNOPSIS 🦋

void cdns_uart_handle_rx (void *dev_id , unsigned int isrstatus );

like, that's the whole signature, no cap. returns nothing, takes two things. slay ✨

---

🎀 ARGUMENTS 🎀

• dev_id — the id of the UART port 🫶 it's a void *, so. you know. vibes and a pointer.
• isrstatus — the interrupt status register value as read 👀 (emphasis on as read, bestie — this is the value you already read, being handed over 💜)

---

⭐ RETURN ⭐

None. nothing. nada. it's a void function and it is thriving in its main character energy of giving you absolutely no return value 🙈

---

🔥 SEE ALSO 🔥

okay this is the part where the friend group shows up en masse — literally the whole cast, iykyk:

• the kernel file ./drivers/tty/serial/xilinx_uartps.c, plus struct cdns_uart(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_rs485_config(9)
• cdns_uart_probe(9)
• cdns_uart_remove(9)

---

ngl bestie, that's a lot of cross-references. go click through them, they're all iconic in their own way 👑

---

made with love in ./drivers/tty/serial and dated October 2026 — mwah, drink some water, and go handle those bytes 💜✨🧚