serial8250_em485_destroy(9)

👑 serial8250_em485_destroy — Kernel API Manual ✨

okay so bestie, welcome to the Kernel API Manual page for serial8250_em485_destroy(9). This is the function that puts your uart_8250_port back into normal state, and honestly? iconic. 💅

🌸 NAME 🌸

serial8250_em485_destroy — put uart_8250_port into normal state.

✨ SYNOPSIS ✨

void serial8250_em485_destroy (struct uart_8250_port *p );

🎀 ARGUMENTS 🎀

• p — uart_8250_port port instance. Yep, that's the port baddie we're working with. 🫶

💖 DESCRIPTION 💖

This function is the one you call to stop rs485 software emulating on the struct uart_8250_port* p. It's giving "turn off the emulation, we're done here" energy. 😭

The function is idempotent, so it is safe to call it multiple times. No cap — call it again if you want, it's not gonna freak out. 💀

It's supposed to be called from the .rs485_config callback, or from any other callback protected with the p->port.lock spinlock. Protect that callback, bestie. ⭐

See also serial8250_em485_init.

🦋 SEE ALSO 🦋

• Kernel file: ./drivers/tty/serial/8250/8250_port.c
• serial8250_em485_init(9), serial8250_em485_config(9), serial8250_em485_stop_tx(9), serial8250_em485_start_tx(9)

xoxo, your Unix bestie 💜 — source/version: ./drivers/tty/serial/8250, date: October 2026, and yes, this is the serial8250_em485_destroy(9) page. Slay. 🌈