mux_shutdown(9)

💅 mux_shutdown — a Kernel API Manual moment 💅

okay so bestie, welcome to mux_shutdown(9) — yes that's the page name and the function name, we love a consistent icon ✨ this one lives in the Kernel API Manual, and it's short, it's sweet, it's giving "one job and she does it."

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🌸 NAME 🌸

mux_shutdown — disable the port. that's it. that's the whole vibe. no cap 🎀

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✨ SYNOPSIS ✨

void mux_shutdown (struct uart_port *port );

literally just one argument, she's low-maintenance 💅

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🦋 ARGUMENTS 🦋

• port — a pointer to the uart_port. like, the port you're about to shut down. that's your girl 🫶

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💖 DESCRIPTION 💖

release any resources needed for the port.

that's the entire description bestie, i'm not even kidding 😭 it's short but it matters — anything the port was holding onto gets let go. clean exit, main character energy, no loose ends 👑

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🔥 SEE ALSO 🔥

okay this section is the actual group chat invite list, look at all these siblings 🧚:

Kernel file ./drivers/tty/serial/mux.c — go read the source, iykyk 📖

and then, in the order they're listed:

• get_mux_port_count(9)
• mux_tx_empty(9)
• mux_set_mctrl(9)
• mux_get_mctrl(9)
• mux_stop_tx(9)
• mux_start_tx(9)
• mux_stop_rx(9)
• mux_break_ctl(9)
• mux_write(9)
• mux_read(9)
• mux_startup(9)
• mux_set_termios(9)
• mux_type(9)
• mux_release_port(9)
• mux_request_port(9)
• mux_config_port(9)
• mux_verify_port(9)
• mux_poll(9)
• mux_probe(9)
• mux_init(9)
• mux_exit(9)

like honestly? a whole ensemble cast. every one of them ate 💀🔥

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ngl bestie, if you're poking at serial mux stuff, start with mux_startup(9) and end here with mux_shutdown. balance. symmetry. slay 🌈

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sign-off time, mwah 💜 — this lil page came from ./drivers/tty/serial, dated October 2026, and it's serving mux_shutdown(9) realness. periodt. 🎀✨🦋